This README is obsolete, please read README files under sub directories. However, useful information can still be found here!!!
This multi-purpose "README" file tends to providing a manual-like explaination on Nesox project:
-
- providing overview and background;
-
- illustrating operations in detail;
Nesox is first developed on OpenFlow 1.3 instance of HP2920 switch and Ryu controller framework.
Nox controller is currently not supporting OF-v1.3.x, which is actually quite a huge amount of work. It is a good choice based on which to implement Nesox if one is written in C/C++ whose talent is system (level) programming. However, nowadays, high-level languages are also used in prototype system software (e.g., distributed systems), such as Spark in Scala, Jane Street using OCaml, Goldman Sach using Erlang, etc.
Ryu controller framework is relatively a slow runtime, however, its support of growing OpenFlow protocols is nearly the best in open source community. OpenFlow v1.3.1 is supported by Ryu in the following file "/ryu/ryu/ofproto/ofproto_v1_3_parser.py", 5908 lines of code reflecting its amount of work, (actually a translation from ONF .c file to .py file fitted into its own framework).
Currently, Nesox only runs on Ryu.
Screen Attaching to Switch
screen /dev/ttyS0 115200
screen -ls
screen -r sockname
screen -X - S sockname quitNote: sockename is usually the pid (actually, pid.tty.host).
screen -S hp2920 /dev/ttyS0 115200
screen -r hp2920Note: to exit the screen:
Ctr-a: quit; Screen Quick Reference!
How to login the switch
[root@debian0][140917111817][/root]ssh manager@switch
We'd like to keep you up to date about:
- Software feature updates
- New product announcements
- Special events
Please register your products now at: www.hp.com/networking/register
manager@switch's password:
HP J9726A 2920-24G Switch Software revision WB.15.14.0007
Copyright (C) 1991-2014 Hewlett-Packard Development Company, L.P.
RESTRICTED RIGHTS LEGEND
Confidential computer software. Valid license from HP required for possession,
use or copying. Consistent with FAR 12.211 and 12.212, Commercial Computer
Software, Computer Software Documentation, and Technical Data for Commercial
Items are licensed to the U.S. Government under vendor's standard commercial
license.
HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.
20555 State Highway 249, Houston, TX 77070
Press any key to continue
OpenFlow v1.3 Support
Since K/KA/WB 15.14, HP Added OpenFlow v1.3 support. The Switch Software Version is now updated to WB.15.14.0007 from factory setup. This update step is ignored here, interested readers could retrieve help from HP website.
Important OpenFlow features supported by HP2920
- Multiple Flow tables: Pipeline processing
- Auxiliary connections
- Multiple controllers
- Rate-limiting the amount of OpenFlow traffic sent to the controller
Unsupported OpenFlow features
- Set-Queue action
A number of configurations of the switch affect the OpenFlow behaviour. What listed bellow are some important ones, others which are not directly related to the OpenFlow are not included. Please refer to the HP Switch Website for the readers' own interests.
-
- Enable OpenFlow
openflow
openflow instance instance-name
openflow instance instance-name enableHP-2920-24G(of-inst-nesox)# show openflow
OpenFlow : Enabled
IP Control Table Mode : Disabled
Instance Information
No. of No. of OpenFlow
Instance Name Oper. Status H/W Flows S/W Flows Version
--------------------------------- ------------ ---------- ---------- --------
nesox Down 0 0 1.0
Note: to delete an openflow instance
no openflow instance instance-name
-
- Configure OpenFlow instances
openflow instance { instance-name | aggregate } [ enable | disable ]HP-2920-24G(config)# openflow instance aggregate
HP-2920-24G(of-inst-aggregate)# show openflow
OpenFlow : Enabled
IP Control Table Mode : Disabled
Instance Information
No. of No. of OpenFlow
Instance Name Oper. Status H/W Flows S/W Flows Version
--------------------------------- ------------ ---------- ---------- --------
aggregate Down 0 0 1.0
HP-2920-24G(of-inst-aggregate)# openflow instance aggregate enable
A controller must be added to the aggregate instance before enabling it.
Note: An aggregate instance cannot be created when named instances exist.
HP-2920-24G(of-inst-aggregate)# show openflow instance
Incomplete input: instance
HP-2920-24G(of-inst-aggregate)# show openflow instance aggregate
Configured OF Version : 1.0
Negotiated OF Version : NA
Instance Name : aggregate
Admin. Status : Disabled
Member List : VLAN 100
Listen Port : None
Oper. Status : Down
Oper. Status Reason : NA
Datapath ID : 0000000000000000
Mode : Active
Flow Location : Hardware and Software
No. of Hw Flows : 0
No. of Sw Flows : 0
Hw. Rate Limit : 0 kbps
Sw. Rate Limit : 100 pps
Conn. Interrupt Mode : Fail-Secure
Maximum Backoff Interval : 60 seconds
Probe Interval : 10 seconds
Hw. Table Miss Count : 0
No. of Sw Flow Tables : NA
Egress Only Ports : None
Table Model : NA
No controllers associated with this instance.
-
- Configure OpenFlow instance members
openflow instance instance-name member vlan vlan-id-
- Set OpenFlow instance mode
openflow instance { instance-name | aggregate } mode { active | passive }-
- Set Flow location
openflow instance { instance-name | aggregate } flow-location hardware-onlyAn error is returned to the controller if the flow cannot be added in hardware and the flow-location is set as hardware-only.
-
- Configure software and hardware rate limiting
openflow instance instance-name limit { hardware-rate kbps | software-rate pps }kbps: Default: 0; Range: 0 — 10,000,000; pps: Limits the number of packets per second per module that this instance can send to the software path. Default: 100 pps Range: 1 — 10,000 pps; Note: Increasing the software rate limit increases CPU consumption and may impact system performance.
-
- Configure listener ports: listen for incoming connections from an OpenFlow controller
openflow instance { instance-name | aggregate } listen-port [tcp-port] [oobm]-
- Configure controller IP and port
openflow controller-id <id> [ip <ip-address>] [port <tcp-port>]
controller-interface { vlan <vlan-id> | oobm }
openflow instance { instance-name | aggregate } controller-id controller-IDA VLAN that is a member of an OpenFlow instance cannot be added as an OpenFlow controller interface. When an OpenFlow controller is associated with an OpenFlow instance it cannot be deleted.
HP-2920-24G(of-inst-titan)# open controller-id 1 ip 202.45.128.181 port 6633 controller-interface vlan 800
HP-2920-24G(of-inst-titan)# show openflow controllers
Controller Information
Controller Id IP Address Port Interface
------------- ------------------------ ------ --------------
1 202.45.128.170 6633 VLAN 800
-
- OpenFlow Monitoring
show openflow resources
show openflow controllers
show openflow flow-table
show openflow instance instance-name
show openflow instance instance-name flows
show openflow instance instance-name flow-table
show openflow instance instance-name meters
show openflow instance instance-name limiters
show openflow instance instance-name port-statistics
show openflow instance instance-name message-statistics
show openflow instance instance-name capabilitiesopenflow resources
HP-2920-24G(of-inst-aggregate)# show openflow controllers
Controller Information
Controller Id IP Address Port Interface
------------- ------------------------ ------ --------------
1 202.45.128.170 6633 VLAN 1
HP-2920-24G(of-inst-aggregate)#
HP-2920-24G(of-inst-aggregate)#
HP-2920-24G(of-inst-aggregate)#
HP-2920-24G(of-inst-aggregate)# show openflow resources
Resource usage in Policy Enforcement Engine
| Rules | Rules Used
Ports | Available | ACL | QoS | IDM | OF | Other |
--------------+-----------+-----+-----+-----+------+-------|
1-24 | 2032 | 0 | 0 | 0 | 0 | 0 |
| Meters | Meters Used
Ports | Available | ACL | QoS | IDM | OF | Other |
--------------+-----------+-----+-----+-----+------+-------|
1-24 | 255 | | 0 | 0 | 0 | 0 |
|Application|
|Port Ranges| Application Port Ranges Used
Ports | Available | ACL | QoS | IDM | OF | Other |
--------------+-----------+-----+-----+-----+------+-------|
1-24 | 60 | 0 | 0 | 0 | | 0 |
0 of 32 Policy Engine management resources used.
Key:
ACL = Access Control Lists
QoS = Device & Application Port Priority, QoS Policies, ICMP rate limits
IDM = Identity Driven Management
OF = OpenFlow
Other = Management VLAN, DHCP Snooping, ARP Protection, Jumbo IP-MTU,
RA Guard, Control Plane Protection.
Resource usage includes resources actually in use, or reserved for future
use by the listed feature. Internal dedicated-purpose resources, such as
port bandwidth limits or VLAN QoS priority, are not included.
openflow controllers
HP-2920-24G(of-inst-aggregate)# show openflow controllers
Controller Information
Controller Id IP Address Port Interface
------------- ------------------------ ------ --------------
1 202.45.128.170 6633 VLAN 1
openflow flow-tables
HP-2920-24G(of-inst-aggregate)# show openflow flow-table
Flow Table Information
Refresh
Max. Rate Flow
Table Name Usage (seconds) Count
-------------------------------- ------ --------- -----
IP Control Table 50% 12 0
Policy Engine Table 50% 20 0
IP Control Table Policy Engine Table
Slot ID Current Usage (%) Current Usage (%)
-------- ----------------- -------------------
1 0.000000 0.00
Note: Current usage is percentage of OpenFlow maximum usage
openflow instance
HP-2920-24G(of-inst-aggregate)# version 1.3 only
HP-2920-24G(of-inst-aggregate)# show openflow instance aggregate
Configured OF Version : 1.3 only
Negotiated OF Version : NA
Instance Name : aggregate
Admin. Status : Disabled
Member List : None
Listen Port : 6633
Oper. Status : Down
Oper. Status Reason : NA
Datapath ID : 0000000000000000
Mode : Active
Flow Location : Hardware and Software
No. of Hw Flows : 0
No. of Sw Flows : 0
Hw. Rate Limit : 0 kbps
Sw. Rate Limit : 100 pps
Conn. Interrupt Mode : Fail-Secure
Maximum Backoff Interval : 60 seconds
Probe Interval : 10 seconds
Hw. Table Miss Count : NA
No. of Sw Flow Tables : 1
Egress Only Ports : None
Table Model : NA
No controllers associated with this instance.
associate instance with controller
HP-2920-24G(of-inst-aggregate)# openflow instance aggregate controller-id 1
HP-2920-24G(of-inst-aggregate)# show openflow instance aggregate
Configured OF Version : 1.3 only
Negotiated OF Version : NA
Instance Name : aggregate
Admin. Status : Disabled
Member List : None
Listen Port : 6633
Oper. Status : Down
Oper. Status Reason : NA
Datapath ID : 0000000000000000
Mode : Active
Flow Location : Hardware and Software
No. of Hw Flows : 0
No. of Sw Flows : 0
Hw. Rate Limit : 0 kbps
Sw. Rate Limit : 100 pps
Conn. Interrupt Mode : Fail-Standalone
Maximum Backoff Interval : 60 seconds
Probe Interval : 10 seconds
Hw. Table Miss Count : NA
No. of Sw Flow Tables : 4
Egress Only Ports : None
Table Model : NA
Controller Id Connection Status Connection State Secure Role
------------- ----------------- ---------------- ------ ------
1 Disconnected Void No Equal
Switch connected to controller
HP-2920-24G(config)# show openflow instance aggregate
Configured OF Version : 1.3 only
Negotiated OF Version : 1.3
Instance Name : aggregate
Admin. Status : Enabled
Member List : None
Listen Port : None
Oper. Status : Down
Oper. Status Reason : NA
Datapath ID : 1000c4346b90c4c0
Mode : Active
Flow Location : Hardware and Software
No. of Hw Flows : 2
No. of Sw Flows : 4
Hw. Rate Limit : 0 kbps
Sw. Rate Limit : 100 pps
Conn. Interrupt Mode : Fail-Secure
Maximum Backoff Interval : 1 seconds
Probe Interval : 10 seconds
Hw. Table Miss Count : NA
No. of Sw Flow Tables : 4
Egress Only Ports : None
Table Model : Policy Engine and Software
Controller Id Connection Status Connection State Secure Role
------------- ----------------- ---------------- ------ ------
1 Connected Active No Equal
-
- Configuring number of software flow tables per instance
openflow-instance-name# software-flow-table valueDefault: 1, Range: 1–4 Only applicable for an OpenFlow version 1.3 instance.
-
- Setting maximum backoff interval for an instance
openflow instance { instance-name | aggregate } max-backoff-interval secsDefault: 60 secondsRange: 1 — 3600 seconds
-
- Configuring IP Control Table Mode
openflow# ip-control-table-modeInclude IP control table in the OpenFlow packet processing pipeline. Default disabled.
-
- Hardware statistics refresh rate
openflow-instance-name# hardware statistics | refresh rate policy-engine-table <value>Refresh rate for policy engine table statistics. Default: 0–3600.
-
- Troubleshooting OpenFlow
debug openflow <errors|events|instance|packets>-
- OpenFlow instance connection interruption mode
[no] openflow instance [instance-name] connection-interruption-mode { fail-secure | fail-standalone }fail-standalone: If the switch loses connection with all controllers, packets of new flows are handled by the legacy switching and routing functions. Existing flows of this OpenFlow instance are removed.
HP-2920-24G(config)# show system
Status and Counters - General System Information
System Name : HP-2920-24G
System Contact :
System Location :
MAC Age Time (sec) : 300
Time Zone : 8
Daylight Time Rule : None
Software revision : WB.15.14.0007 Base MAC Addr : c4346b-90c4c0
ROM Version : WB.15.05 Serial Number : SG45FLWXVL
Up Time : 47 days Memory - Total : 170,250,752
CPU Util (%) : 2 Free : 85,696,996
IP Mgmt - Pkts Rx : 317,248 Packet - Total : 6750
Pkts Tx : 193,942 Buffers Free : 5009
Lowest : 4951
Missed : 0
| Machine Node | IP address | Port No. | Line Color |
|---|---|---|---|
| switch | 202.45.128.180 | 9 | Red |
| debian0 | 202.45.128.182 | 9 | White |
| debian1 | 202.45.128.161 | 1 | White |
| debian2 | 202.45.128.162 | 2 | Green |
| debian3 | 202.45.128.163 | 3 | Red |
| debian4 | 202.45.128.164 | 4 | Yellow |
| d0 | 202.45.128.181 | 9 | Red |
| d1 | 202.45.128.171 | 5 | Red |
| d2 | 202.45.128.172 | 6 | Green |
| d3 | 202.45.128.173 | 7 | Blue |
| d4 | 202.45.128.174 | 8 | Yellow |
| controller | 202.45.128.179 | 9 | Green |
Note: Port No. indicates physical port corresponding to a hardware interface of the switch in this context. Port No. = 9 means it is connected to an external alternative switch!
A VLAN is comprised of multiple ports operating as members of the same subnet (broadcast domain). Ports on multiple devices can belong to the same VLAN, and traffic moving between ports in the same VLAN is bridged (or "switched"). (Traffic moving between different VLANs must be routed.) A static VLAN is an 802.1Q-compliant VLAN configured with one or more ports that remain members regardless of traffic usage. (A dynamic VLAN is an 802.1Q-compliant VLAN membership that the switch temporarily creates on a port to provide a link to another port in the same VLAN on another device.)
A group of networked ports assigned to a VLAN form a broadcast domain that is separate from other VLANs that may be configured on the switch. On a given switch, packets are bridged between source and destination ports that belong to the same VLAN. Thus, all ports passing traffic for a particular subnet address should be configured to the same VLAN. Cross-domain broadcast traffic in the switch is eliminated and bandwidth is saved by not allowing packets to flood out all ports.
The above paragraphs are stealed from HP document titled "HP Switch Software: Advanced Traffic Management Guide (2920 Switches)". The sentences are so precise and even beautiful!
Targeting VLAN Table
| VLAN ID | VLAN Name | Ports | Bank ID | IP addr |
|---|---|---|---|---|
| 100 | VLAN100 | 1 2 3 4 | 1 | 202.45.128.166 |
| 200 | VLAN200 | 5 6 7 8 | 1 | 202.45.128.167 |
| 400 | control | 20 | 2 | 202.45.128.168 |
It is proved that this configuration is wrong, probably because different VLANs should have different IP address!
Refined VLAN Table
| Subnet Mask | Network Addr. | Address Range | Broadcast Addr. |
|---|---|---|---|
| 255.255.255.248 | 202.45.128.160 | 202.45.128.161 - 202.45.128.166 | 202.45.128.167 |
| 255.255.255.248 | 202.45.128.168 | 202.45.128.169 - 202.45.128.174 | 202.45.128.175 |
| 255.255.255.248 | 202.45.128.176 | 202.45.128.177 - 202.45.128.182 | 202.45.128.183 |
| VLAN Address | VLAN ID | VLAN Name | Machine Nodes |
|---|---|---|---|
| 202.45.128.165 | 100 | OF100 | debian1 - debian4 |
| 202.45.128.170 | 400 | OF400 | d1 - d4 |
| 202.45.128.180 | 800 | Control | d0 debian0 controller |
| Machine Node | IP address | Port No. | Line Color |
|---|---|---|---|
| switch | 202.45.128.180 | 9 | Red |
| debian0 | 202.45.128.182 | 9 | White |
| d0 | 202.45.128.181 | 9 | Red |
| controller | 202.45.128.179 | 9 | Green |
HP-2920-24G 22-Sep-2014 17:56:48
==========================- CONSOLE - MANAGER MODE -============================
Switch Configuration - Internet (IP) Service
IP Routing : Enabled
Default TTL : 64
Arp Age : 20
VLAN IP Config IP Address Subnet Mask
-------------------- + ---------- --------------- ---------------
DEFAULT_VLAN | Disabled
OF100 | Manual 202.45.128.165 255.255.255.248
OF400 | Manual 202.45.128.170 255.255.255.248
CONTROL | Manual 202.45.128.180 255.255.255.248
Actions-> Cancel Edit Save Help
Cancel changes and return to previous screen.
Use arrow keys to change action selection and <Enter> to execute action.
Port Assignment
Switch Configuration - VLAN - VLAN Port Assignment
Port DEFAULT_VLAN OF100 OF400 CONTROL
---- + ------------ ------------ ------------ ------------
1 | No Untagged No No
2 | No Untagged No No
3 | No Untagged No No
4 | No Untagged No No
5 | No No Untagged No
6 | No No Untagged No
7 | No No Untagged No
8 | No No Untagged No
9 | No No No Untagged
10 | Untagged No No No
Add Routing Table Entries
route add -net 202.45.128.160 gw 202.45.128.180 netmask 255.255.255.248
route add -net 202.45.128.168 gw 202.45.128.180 netmask 255.255.255.248[root@debian0][140922203920][/root]route
Kernel IP routing table
Destination Gateway Genmask Flags Metric Ref Use Iface
default cisco3560x-202. 0.0.0.0 UG 0 0 0 eth0
202.45.128.0 * 255.255.255.0 U 0 0 0 eth0
202.45.128.160 switch 255.255.255.248 UG 0 0 0 eth0
202.45.128.168 switch 255.255.255.248 UG 0 0 0 eth0
[root@debian0][140922204051][/root]
For IP Routing, refer to http://www.firewall.cx/networking-topics/routing/181-routing-process.html to understand.
Initial VLAN Configuration
HP-2920-24G(config)# show vlan
Status and Counters - VLAN Information
Maximum VLANs to support : 256
Primary VLAN : DEFAULT_VLAN
Management VLAN :
VLAN ID Name | Status Voice Jumbo
------- -------------------------------- + ---------- ----- -----
1 DEFAULT_VLAN | Port-based No No
This is the factory default state, in which all ports on the switch belong to the (port-based) default VLAN (DEFAULT_VLAN; VID = 1) and are in the same broadcast/multicast domain. (The default VLAN is also the Primary VLAN.)
Detail information of DEFAULT_VLAN
HP-2920-24G(config)# show vlans 1
Status and Counters - VLAN Information - VLAN 1
VLAN ID : 1
Name : DEFAULT_VLAN
Status : Port-based
Voice : No
Jumbo : No
Port Information Mode Unknown VLAN Status
---------------- -------- ------------ ----------
1 Untagged Learn Up
2 Untagged Learn Up
3 Untagged Learn Up
4 Untagged Learn Up
5 Untagged Learn Up
6 Untagged Learn Up
7 Untagged Learn Up
8 Untagged Learn Up
...
Note this list is incomplete!
Create VLAN 100
HP-2920-24G(config)# vlan 100
HP-2920-24G(vlan-100)# show vlans
Status and Counters - VLAN Information
Maximum VLANs to support : 256
Primary VLAN : DEFAULT_VLAN
Management VLAN :
VLAN ID Name | Status Voice Jumbo
------- -------------------------------- + ---------- ----- -----
1 DEFAULT_VLAN | Port-based No No
100 VLAN100 | Port-based No No
Note: use
no vlan VLAN-IDto delete a specific VLAN. A port-based VLAN is layer-2 broadcast domain, while a protocol-based one is layer-3 broadcast domain. DEFAULT_VLAN is always present in the switch.
Asigning Ports to VLANs
A port can be assigned to several VLANs, but only one of those assignments can be "Untagged".
HP-2920-24G(config)# show vlans 100
Status and Counters - VLAN Information - VLAN 100
VLAN ID : 100
Name : VLAN100
Status : Port-based
Voice : No
Jumbo : No
Port Information Mode Unknown VLAN Status
---------------- -------- ------------ ----------
1 Tagged Learn Up
2 Tagged Learn Up
3 Tagged Learn Up
4 Tagged Learn Up
Show Costom VLAN Information
show vlans custom 1-8 id name:20 ipaddr ipmask ipconfig state statusHP-2920-24G(config)# show vlans custom 1-8 id name:20 ipaddr ipmask ipconfig state status
Status and Counters - VLAN Information - Custom view
VLANID VLAN name IP Addr IP Mask IPConfig State Status
------ -------------------- --------------- --------------- ---------- ----- ----------
1 DEFAULT_VLAN 202.45.128.168 255.255.255.0 Manual Up Port-based
100 VLAN100 Disabled Up Port-based
Routing Table
[root@debian0][140922202400][/root]route -n
Kernel IP routing table
Destination Gateway Genmask Flags Metric Ref Use Iface
0.0.0.0 202.45.128.1 0.0.0.0 UG 0 0 0 eth0
202.45.128.0 0.0.0.0 255.255.255.0 U 0 0 0 eth0
[root@debian0][140922202402][/root]netstat -rn
Kernel IP routing table
Destination Gateway Genmask Flags MSS Window irtt Iface
0.0.0.0 202.45.128.1 0.0.0.0 UG 0 0 0 eth0
202.45.128.0 0.0.0.0 255.255.255.0 U 0 0 0 eth0
[root@debian0][140922202439][/root]ip
Usage: ip [ OPTIONS ] OBJECT { COMMAND | help }
ip [ -force ] -batch filename
where OBJECT := { link | addr | addrlabel | route | rule | neigh | ntable |
tunnel | tuntap | maddr | mroute | mrule | monitor | xfrm |
netns | l2tp }
OPTIONS := { -V[ersion] | -s[tatistics] | -d[etails] | -r[esolve] |
-f[amily] { inet | inet6 | ipx | dnet | link } |
-l[oops] { maximum-addr-flush-attempts } |
-o[neline] | -t[imestamp] | -b[atch] [filename] |
-rc[vbuf] [size]}
[root@debian0][140922202453][/root]ip route list
default via 202.45.128.1 dev eth0 proto static
202.45.128.0/24 dev eth0 proto kernel scope link src 202.45.128.182
[root@debian0][140922202455][/root]
[root@debian0][140922203410][/root]route
Kernel IP routing table
Destination Gateway Genmask Flags Metric Ref Use Iface
default cisco3560x-202. 0.0.0.0 UG 0 0 0 eth0
202.45.128.0 * 255.255.255.0 U 0 0 0 eth0
[root@debian0][140922203412][/root]route add
Usage: inet_route [-vF] del {-host|-net} Target[/prefix] [gw Gw] [metric M] [[dev] If]
inet_route [-vF] add {-host|-net} Target[/prefix] [gw Gw] [metric M]
[netmask N] [mss Mss] [window W] [irtt I]
[mod] [dyn] [reinstate] [[dev] If]
inet_route [-vF] add {-host|-net} Target[/prefix] [metric M] reject
inet_route [-FC] flush NOT supported
[root@debian0][140922203416][/root]
HP-2920-24G# show openflow controllers
Controller Information
Controller Id IP Address Port Interface
------------- ------------------------ ------ --------------
1 202.45.128.181 6633 VLAN 800
HP-2920-24G# show openflow instance titan
Configured OF Version : 1.3
Negotiated OF Version : 1.3
Instance Name : titan
Admin. Status : Enabled
Member List : VLAN 100
Listen Port : 6633
Oper. Status : Up
Oper. Status Reason : NA
Datapath ID : 0064c4346b90c4c0
Mode : Active
Flow Location : Hardware and Software
No. of Hw Flows : 2
No. of Sw Flows : 4
Hw. Rate Limit : 0 kbps
Sw. Rate Limit : 100 pps
Conn. Interrupt Mode : Fail-Secure
Maximum Backoff Interval : 10 seconds
Probe Interval : 10 seconds
Hw. Table Miss Count : NA
No. of Sw Flow Tables : 4
Egress Only Ports : None
Table Model : Policy Engine and Software
Controller Id Connection Status Connection State Secure Role
------------- ----------------- ---------------- ------ ------
1 Connected Active No Equal
Flow 1
Match
Incoming Port : Any Ethernet Type : Any
Source MAC : Any Destination MAC : Any
VLAN ID : Any VLAN priority : Any
Source Protocol Address : Any
Target Protocol Address : Any
IP Protocol : Any
IP ECN : Any IP DSCP : Any
Source Port : Any Destination Port : Any
Attributes
Priority : 0 Duration : 473 seconds
Hard Timeout : 0 seconds Idle Timeout : 0 seconds
Byte Count : 0 Packet Count : NA
Flow Table ID : 0 Controller ID : NA
Activity Count: NA Cookie : 0x0
Hardware Index : NA
Instructions
Goto Table ID : 100
Flow 2
Match
Incoming Port : Any Ethernet Type : Any
Source MAC : Any Destination MAC : Any
VLAN ID : Any VLAN priority : Any
Source Protocol Address : Any
Target Protocol Address : Any
IP Protocol : Any
IP ECN : Any IP DSCP : Any
Source Port : Any Destination Port : Any
Attributes
Priority : 0 Duration : 473 seconds
Hard Timeout : 0 seconds Idle Timeout : 0 seconds
Byte Count : NA Packet Count : 1508
Flow Table ID : 100 Controller ID : NA
Activity Count: NA Cookie : 0x0
Hardware Index : NA
Instructions
Drop
Flow 3
Match
Incoming Port : Any Ethernet Type : Any
Source MAC : Any Destination MAC : Any
VLAN ID : Any VLAN priority : Any
Source Protocol Address : Any
Target Protocol Address : Any
IP Protocol : Any
IP ECN : Any IP DSCP : Any
Source Port : Any Destination Port : Any
Attributes
Priority : 0 Duration : 473 seconds
Hard Timeout : 0 seconds Idle Timeout : 0 seconds
Byte Count : 0 Packet Count : 0
Flow Table ID : 200 Controller ID : NA
Activity Count: NA Cookie : 0x0
Hardware Index : NA
Instructions
Drop
Flow 4
Match
Incoming Port : Any Ethernet Type : Any
Source MAC : Any Destination MAC : Any
VLAN ID : Any VLAN priority : Any
Source Protocol Address : Any
Target Protocol Address : Any
IP Protocol : Any
IP ECN : Any IP DSCP : Any
Source Port : Any Destination Port : Any
Attributes
Priority : 0 Duration : 703 seconds
Hard Timeout : 0 seconds Idle Timeout : 0 seconds
Byte Count : 0 Packet Count : 0
Flow Table ID : 201 Controller ID : NA
Activity Count: NA Cookie : 0x0
Hardware Index : NA
Instructions
Drop
Flow 5
Match
Incoming Port : Any Ethernet Type : Any
Source MAC : Any Destination MAC : Any
VLAN ID : Any VLAN priority : Any
Source Protocol Address : Any
Target Protocol Address : Any
IP Protocol : Any
IP ECN : Any IP DSCP : Any
Source Port : Any Destination Port : Any
Attributes
Priority : 0 Duration : 703 seconds
Hard Timeout : 0 seconds Idle Timeout : 0 seconds
Byte Count : 0 Packet Count : 0
Flow Table ID : 202 Controller ID : NA
Activity Count: NA Cookie : 0x0
Hardware Index : NA
Instructions
Drop
Flow 6
Match
Incoming Port : Any Ethernet Type : Any
Source MAC : Any Destination MAC : Any
VLAN ID : Any VLAN priority : Any
Source Protocol Address : Any
Target Protocol Address : Any
IP Protocol : Any
IP ECN : Any IP DSCP : Any
Source Port : Any Destination Port : Any
Attributes
Priority : 0 Duration : 703 seconds
Hard Timeout : 0 seconds Idle Timeout : 0 seconds
Byte Count : 0 Packet Count : 0
Flow Table ID : 203 Controller ID : NA
Activity Count: NA Cookie : 0x0
Hardware Index : NA
Instructions
Drop
HP-2920-24G(of-inst-nesox)# show openflow instance nesox
Configured OF Version : 1.3
Negotiated OF Version : 1.3
Instance Name : nesox
Admin. Status : Enabled
Member List : VLAN 400
Listen Port : None
Oper. Status : Up
Oper. Status Reason : NA
Datapath ID : 0190c4346b90c4c0
Mode : Active
Flow Location : Hardware and Software
No. of Hw Flows : 2
No. of Sw Flows : 1
Hw. Rate Limit : 0 kbps
Sw. Rate Limit : 100 pps
Conn. Interrupt Mode : Fail-Secure
Maximum Backoff Interval : 10 seconds
Probe Interval : 10 seconds
Hw. Table Miss Count : NA
No. of Sw Flow Tables : 4
Egress Only Ports : None
Table Model : Policy Engine and Software
Controller Id Connection Status Connection State Secure Role
------------- ----------------- ---------------- ------ ------
1 Connected Active No Equal
| Table ID. | Function |
|---|---|
| 100 | Policy Engine Table |
| 200 | Service Dispatching Table |
| 201 | Dynamic Flow Scheduling Table |
| 202 | Flow Rate Limiting Table |
| 203 | MAC Learning Table |
| 999 | Terminate Processing |
Note: Functional arrangemnts of pipelined flow tables under "IP control table mode" are different and more complicated. Nesox currently does not utilize that feature!
HP-2920-24G(of-inst-nesox)# show openflow instance nesox flow-table
OpenFlow Instance Flow Table Information
Table
ID Table Name Flow Count Miss Count Goto Table
------ ---------------------- ---------- -------------------- ---------------
0 Start 1 0 100
100 Policy Table 1 0 200
200 SW Table 1 1 0 201, 202, 203
201 SW Table 2 1 0 202, 203
202 SW Table 3 1 0 203
203 SW Table 4 1 0 *
* Denotes that the pipeline could end here.
Note: Initially, each table has one flow entry matching everything and drop it. Table Miss only happens at table 100 (Policy Table), that is the default starting table of HP OpenFlow.
To run the (ryu-based, maybe nox-based in near future and/or others) nesox scheduler::
% ryu-manager ryu-nesox.py
This command line will run up the nesox scheduler and print output on screen.
Mainly on Ryu controller framework
HP ONF Experimenter ID
In file: /ryu/ryu/ofproto/ofproto_common.py
HP_EXPERIMENTER_ID = 0x00002481 # HP
HP_LABS_EXPERIMENTER_ID = 0x000004EA # HP - Labsryu-manager.py
from ryu.cmd.manager import main
main()Runtime Behavior of the Ryu NOS
Base Class of Ryu Application
class ryu.base.app_manager.RyuApp(*_args, **_kwargs)-
- When
start()is defined, event handler may not called properly!
- When
-
- Events that change the Operational Status of the OpenFlow instance
Operational Status The Oper.Status field indicates the operational status of the instance and can be either up or down. The operational status will be down when either the member VLAN of the OpenFlow instance does not exist on the switch or the controller VLAN of the OpenFlow instance does not exist on the switch. In the case when multiple controllers connect over multiple controller VLANs, the operational status will be down when none of the controller VLANs exist on the switch. When the member VLAN is down, all ports on the member VLAN are down.
message statistics
HP-2920-24G(config)# show openflow instance aggregate message-statistics
OpenFlow
Message Type Received Rejected
---------------- --------------- --------
OFPT_FLOW_MOD 8 8
OFPT_PORT_MOD 0 0
OFPT_GROUP_MOD 0 0
OFPT_METER_MOD 0 0
debug openflow <errors|events|instance|packets>-
- Aggregation Mode
In Aggregation mode, all VLANs in the switch are part of an OpenFlow instance. The exception is the management VLAN and a VLAN that communicates to the controller. Similar to a lab environment the OpenFlow controller manages all the switching and routing for the switch.
How to setup the management VLAN and how to separate the controller VLAN.
-
- Inconsistant (netmask) values
In VLAN IP configuration menu, to set the following network
Roles of Networking Participants
| C/S role | P/S role | S/R role | MR role |
|---|---|---|---|
| Server | Publisher | Sender | Mapper |
| Client | Subscriber | Receiver | Reducer |
When Nesox server start up it wait for connection request and ready to send amount of data to connected client.
Nesox Server Usage
usage:
nesoxserver.exe portNesox Client Usage
usage:
nesoxclient.exe host port amount [M|G]Data Set Used to Transfer
| File | Size | Description | Source |
|---|---|---|---|
| dickens.txt | 30M | Nearly complete works of Charles Dickens | Princeton Dataset |
| war+peace.txt | 3M | War and Peace | Princeton Dataset |
| bible.txt | 4M | The Bible | Princeton Dataset |
Flow 6
Match
Incoming Port : 5 Ethernet Type : Any
Source MAC : Any Destination MAC : 24be05-109f4d
VLAN ID : Any VLAN priority : Any
Source Protocol Address : Any
Target Protocol Address : Any
IP Protocol : Any
IP ECN : Any IP DSCP : Any
Source Port : Any Destination Port : Any
Attributes
Priority : 2 Duration : 165 seconds
Hard Timeout : 0 seconds Idle Timeout : 0 seconds
Byte Count : 119330 Packet Count : 81
Flow Table ID : 200 Controller ID : 1
Activity Count: NA Cookie : 0x0
Hardware Index : NA
Instructions
Apply Actions
Output : 6
Flow 7
Match
Incoming Port : 6 Ethernet Type : Any
Source MAC : Any Destination MAC : 24be05-109f6e
VLAN ID : Any VLAN priority : Any
Source Protocol Address : Any
Target Protocol Address : Any
IP Protocol : Any
IP ECN : Any IP DSCP : Any
Source Port : Any Destination Port : Any
Attributes
Priority : 2 Duration : 165 seconds
Hard Timeout : 0 seconds Idle Timeout : 0 seconds
Byte Count : 2004 Packet Count : 28
Flow Table ID : 200 Controller ID : 1
Activity Count: NA Cookie : 0x0
Hardware Index : NA
Instructions
Apply Actions
Output : 5
Flow 8 Match Incoming Port : 5 Ethernet Type : Any Source MAC : Any Destination MAC : 24be05-109f4d VLAN ID : Any VLAN priority : Any Source Protocol Address : Any Target Protocol Address : Any IP Protocol : Any IP ECN : Any IP DSCP : Any Source Port : Any Destination Port : Any Attributes Priority : 2 Duration : 199 seconds Hard Timeout : 0 seconds Idle Timeout : 0 seconds Byte Count : 119450 Packet Count : 83 Flow Table ID : 201 Controller ID : 1 Activity Count: NA Cookie : 0x0 Hardware Index : NA Instructions Apply Actions Output : 6
Flow 9 Match Incoming Port : 6 Ethernet Type : Any Source MAC : Any Destination MAC : 24be05-109f6e VLAN ID : Any VLAN priority : Any Source Protocol Address : Any Target Protocol Address : Any IP Protocol : Any IP ECN : Any IP DSCP : Any Source Port : Any Destination Port : Any Attributes Priority : 2 Duration : 199 seconds Hard Timeout : 0 seconds Idle Timeout : 0 seconds Byte Count : 2124 Packet Count : 30 Flow Table ID : 201 Controller ID : 1 Activity Count: NA Cookie : 0x0 Hardware Index : NA Instructions Apply Actions Output : 5
Flow 10 Match Incoming Port : 5 Ethernet Type : Any Source MAC : Any Destination MAC : 24be05-109f4d VLAN ID : Any VLAN priority : Any Source Protocol Address : Any Target Protocol Address : Any IP Protocol : Any IP ECN : Any IP DSCP : Any Source Port : Any Destination Port : Any Attributes Priority : 2 Duration : 1058 seconds Hard Timeout : 0 seconds Idle Timeout : 0 seconds Byte Count : 120166 Packet Count : 88 Flow Table ID : 202 Controller ID : 1 Activity Count: NA Cookie : 0x0 Hardware Index : NA Instructions Apply Actions Output : 6
Flow 11 Match Incoming Port : 6 Ethernet Type : Any Source MAC : Any Destination MAC : 24be05-109f6e VLAN ID : Any VLAN priority : Any Source Protocol Address : Any Target Protocol Address : Any IP Protocol : Any IP ECN : Any IP DSCP : Any Source Port : Any Destination Port : Any Attributes Priority : 2 Duration : 1058 seconds Hard Timeout : 0 seconds Idle Timeout : 0 seconds Byte Count : 3102 Packet Count : 44 Flow Table ID : 202 Controller ID : 1 Activity Count: NA Cookie : 0x0 Hardware Index : NA Instructions Apply Actions Output : 5
Flow 12 Match Incoming Port : 5 Ethernet Type : Any Source MAC : Any Destination MAC : 24be05-109f4d VLAN ID : Any VLAN priority : Any Source Protocol Address : Any Target Protocol Address : Any IP Protocol : Any IP ECN : Any IP DSCP : Any Source Port : Any Destination Port : Any Attributes Priority : 2 Duration : 1099 seconds Hard Timeout : 0 seconds Idle Timeout : 0 seconds Byte Count : 119746 Packet Count : 81 Flow Table ID : 203 Controller ID : 1 Activity Count: NA Cookie : 0x0 Hardware Index : NA Instructions Apply Actions Output : 6
Flow 13 Match Incoming Port : 6 Ethernet Type : Any Source MAC : Any Destination MAC : 24be05-109f6e VLAN ID : Any VLAN priority : Any Source Protocol Address : Any Target Protocol Address : Any IP Protocol : Any IP ECN : Any IP DSCP : Any Source Port : Any Destination Port : Any Attributes Priority : 2 Duration : 1099 seconds Hard Timeout : 0 seconds Idle Timeout : 0 seconds Byte Count : 2682 Packet Count : 37 Flow Table ID : 203 Controller ID : 1 Activity Count: NA Cookie : 0x0 Hardware Index : NA Instructions Apply Actions Output : 5
Markdown Syntax | Ryu SDN Framework | HP2920 Switch Series | Ryu at Gibhub | Princeton Dataset | By liying01
