How to configur Alcatel Virtual Chassis feature (VC) | Alcatel Switch VC Configura by CLI | Tech bot

Configure a Virtual Chassis of two switches

OmniSwitch AOS R6/R8

How to
✓ This lab is designed to familiarize you with the Virtual Chassis feature (VC) and its configuration.

Check that both switches have been launched on the "Working" directory

sw1 sw1 (6900-A)-> show running-directory

CONFIGURATION STATUS

Running CMM : MASTER-PRIMARY,

CMM Mode : VIRTUAL-CHASSIS MONO CMM,
Current CMM Slot : CHASSIS-1 A,
Running configuration : WORKING,
Certify/Restore Status : CERTIFIED

SYNCHRONIZATION STATUS

Running Configuration : SYNCHRONIZE

sw1 (6900-B) -> show running-directory

CONFIGURATION STATUS

Running CMM : MASTER-PRIMARY,

CMM Mode : VIRTUAL-CHASSIS MONO CMM,

Current CMM Slot : CHASSIS-1 A,

Running configuration : WORKING,

Certify/Restore Status : CERTIFIED

SYNCHRONIZATION STATUS

Running Configuration : SYNCHRONIZE

Assign a globally unique chassis identifier to the switch 6900-A and enable the switch to operate in virtual chassis mode
Force the 6900-A to be the master chassis, assign the highest chassis priority to it:

sw1 (6900-A)-> show virtual-chassis topology

sw1 (6900-A)-> virtual-chassis chassis-group 1

sw1 (6900-A)-> virtual chassis-id 1 configured-chassis-priority 200

sw1 (6900-A)-> show configuration vcm-snapshot chassis-id 1

sw1 (6900-A)-> write memory

sw1 (6900-A)-> reload from working no rollback-timeout

Confirm Activate (Y/N): Y

Wait the restart (close to 4 mn in lab context)

+++ VC Takeover in progress.

+++ VC Takeover complete.

Chassis Supervision: CMM has reached the ready state [L8]

Check that configuration has been taken account.

sw1 (6900-A)-> show virtual-chassis topology

Legend: Status suffix "+" means an added unit after last saved topology

Local Chassis: 1

Oper Config Oper

Chas Role Status Chas ID Pri Group MAC-Address

-----+------------+-------------------+----------------------+----------+------------+------------------------+

1 Master Running 1 200 1 2c:fa:a2:05:cd:71

sw1 sw1 (6900-A)-> show configuration vcm-snapshot chassis-id 1

! Virtual Chassis Manager:

virtual-chassis chassis-id 1 configured-chassis-id 1

virtual-chassis vf-link-mode static

virtual-chassis chassis-id 1 chassis-group 1

virtual-chassis chassis-id 1 configured-chassis-priority 200

! PLEASE DO NOT MODIFY THE AREAS OF [SAVED INFO xxx]

! [SAVED INFO VC IDs] 1

! IP:

ip interface local chassis-id 1 emp address 10.4.20.1 mask 255.255.255.

Notes:

A reboot of the switch is required to update the chassis priority.

Assign a globally unique chassis identifier to the switch 6900B and enable the switch to operate in virtual

chassis

sw2 (6900-B)-> show virtual-chassis topology

sw2 (6900-B)-> virtual-chassis chassis-id 1 configured-chassis-id 2

sw2 (6900-B)-> virtual-chassis chassis-group 1

sw2 (6900-B)-> write memory

WARNING - Virtual chassis topology change detected. Chassis 1 missing!

Configuration associated with missing chassis will be erased permanently!

Confirm to continue (Y/N): y

The command write memory is protected by issuing a warning to prevent or warn purging the

configuration of the elements that are missing. Chassis id has been changed in this case.

sw2 (6900-B)-> reload from working no rollback-timeout

Confirm Activate (Y/N) : y

Wait the restart (close to 4 mn in lab context)

+++ VC Takeover in progress.

+++ VC Takeover complete.

Chassis Supervision: CMM has reached the ready state [L8]

Check that configuration has been taken account.

sw2 (6900-B)-> show configuration vcm-snapshot chassis-id 2

! Virtual Chassis Manager:

virtual-chassis chassis-id 2 configured-chassis-id 2

virtual-chassis vf-link-mode static

virtual-chassis chassis-id 2 chassis-group 1

! PLEASE DO NOT MODIFY THE AREAS OF [SAVED INFO xxx]

! [SAVED INFO VC IDs] 2

! IP:

ip interface local chassis-id 2 emp address 10.4.20.2 mask 255.255.255.0

sw2 (6900-B)-> show virtual-chassis topology

Legend: Status suffix "+" means an added unit after last saved topology

Local Chassis: 2

Oper Config Oper

Chas Role Status Chas ID Pri Group MAC-Address

-----+------------+-------------------+----------------------+----------+------------+------------------------+

2 Master Running 2 100 1 2c:fa:a2:05:cd:71

Configure member ports for the VFL:

sw1 (6900-A)-> virtual-chassis vf-link-mode static

sw1 (6900-A)-> virtual-chassis chassis-id 1 vf-link 0 create

sw1 (6900-A)-> virtual-chassis chassis-id 1 vf-link 0 member-port 1/2/1

sw1 (6900-A)-> virtual-chassis chassis-id 1 vf-link 0 member-port 1/2/2

sw1 (6900-A)-> write memory

sw1 (6900-A)-> show configuration vcm-snapshot chassis-id 1

! Virtual Chassis Manager:
virtual-chassis chassis-id 1 configured-chassis-id 1
virtual-chassis vf-link-mode static

virtual-chassis chassis-id 1 vf-link 0 create
virtual-chassis chassis-id 1 vf-link 0 member-port 1/2/1
virtual-chassis chassis-id 1 vf-link 0 member-port 1/2/2
virtual-chassis chassis-id 1 chassis-group 1
virtual-chassis chassis-id 1 configured-chassis-priority 200
! ! PLEASE DO NOT MODIFY THE AREAS OF [SAVED INFO xxx]
! [SAVED INFO VC IDs] 1
! IP:
ip interface local chassis-id 1 emp address 10.4.20.1 mask 255.255.255.0

sw2 (6900-B)-> virtual-chassis vf-link-mode static

sw2 (6900-B)-> virtual-chassis chassis-id 2 vf-link 0 create

sw2 (6900-B)-> virtual-chassis chassis-id 2 vf-link 0 member-port 2/2/1

sw2 (6900-B)-> virtual-chassis chassis-id 2 vf-link 0 member-port 2/2/2

sw2 (6900-B)-> write memory

sw2 (6900-B)-> show configuration vcm-snapshot chassis-id 2

! Virtual Chassis Manager:
virtual-chassis chassis-id 2 configured-chassis-id 2
virtual-chassis vf-link-mode static
virtual-chassis chassis-id 2 vf-link 0 create
virtual-chassis chassis-id 2 vf-link 0 member-port 2/2/1
virtual-chassis chassis-id 2 vf-link 0 member-port 2/2/2
virtual-chassis chassis-id 2 chassis-group 1
!
! PLEASE DO NOT MODIFY THE AREAS OF [SAVED INFO xxx]
! [SAVED INFO VC IDs] 2
!
! IP:
ip interface local chassis-id 2 emp address 10.4.20.2 mask 255.255.255.0

Activate the corresponding interface

sw1 (6900-A)-> interfaces 1/2/1-2 admin-state enable

sw1 (6900-A)-> write memory

Notes:

On the 6900-B, INTERFACE 2/2/1 and INTERFACE 2/2/2 automatically LINK UP and the switch reboots.

Once the system reboots, you should see the following messages:

Check the virtual-chassis topology:

sw1 (6900-A)-> show virtual-chassis topology

Legend: Status suffix "+" means an added unit after last saved topology

Local Chassis: 1

Oper Config Oper

Chas Role Status Chas ID Pri Group MAC-Address

-----+------------+-------------------+--------+-----+------+------------------

1 Master Running 1 200 1 2c:fa:a2:05:cd:a9

2 Slave Running+ 2 100 1 2c:fa:a2:05:cd:71It is also possible to check that all the OS6900 of the virtual chassis are in status “System Ready” with the

following command:

sw1 (6900-A)-> debug show virtual-chassis topology

Legend: Status suffix "+" means an added unit after last saved topology

Local Chassis: 1

Oper Config Oper System

Chas Role Status Chas ID Pri Group MAC-Address Ready

-----+------------+-------------------+--------+-----+------+----------------------+-------

1 Master Running 1 200 1 2c:fa:a2:05:cd:a9 Yes

2 Slave Running+ 2 100 1 2c:fa:a2:05:cd:71 Yes

Notes:

suffix “+”, if any VC element is detected as “Running” but not configuration saved

Save the configuration, synchronize flash Between CMMs and check the virtual-chassis topology

sw1 (6900-A)-> write memory flash-synchro

Virtual Chassis Monitoring

Check the virtual-chassis topology

sw1 (6900-A)-> show virtual-chassis topology

Legend: Status suffix "+" means an added unit after last saved topology

Local Chassis: 1

Oper Config Oper

Chas Role Status Chas ID Pri Group MAC-Address

-----+------------+-------------------+--------+-----+------+------------------

1 Master Running 1 200 1 2c:fa:a2:05:cd:71

2 Slave Running 2 100 1 2c:fa:a2:05:cd:a9

Check that the System Ready is set to Yes with the command:

sw1 (6900-A)-> cat /flash/working/vcsetup.cfg

!========================================!

! File: /flash/working/vcsetup.cfg !

!========================================!

! Virtual Chassis Manager:

virtual-chassis configured-chassis-id 1

virtual-chassis vf-link-mode static

virtual-chassis vf-link 0 create

virtual-chassis vf-link 0 member-port 1/2/1

virtual-chassis vf-link 0 member-port 1/2/2

virtual-chassis chassis-group 1

virtual-chassis configured-chassis-priority 200

!! PLEASE DO NOT MODIFY THE AREAS OF [SAVED INFO xxx]

! [SAVED INFO VC IDs] 3

Display the different ports belonging to the VFL link, type:

sw1 (6900-A)-> show virtual-chassis vf-link

VFLink mode: Static

Primary Config Active Def Speed

Chassis/VFLink ID Oper Port Port Port Vlan Type

-------------------+----------+---------+-------+-------+---------+-----------

1/0 Up 1/2/2 2 2 1 10G

2/0 Up 2/2/2 2 2 1 10G

sw1 (6900-A)-> show virtual-chassis vf-link member-port

VFLink mode: Static

Chassis/VFLink ID Chassis/Slot/Port Oper Is Primary

-------------------+------------------+----------+-------------

1/0 1/2/1 Up No

1/0 1/2/2 Up Yes

2/0 2/2/1 Up No

2/0 2/2/2 Up Yes

Notes:

The “Is Primary” field defines the primary port of the virtual fabric link.

Verify the consistency of system-level mandatory parameters between the two chassis:

sw1 (6900-A)-> show virtual-chassis consistency

Legend: * - denotes mandatory consistency which will affect chassis status

licenses-info - A: Advanced; B: Data Center;

Config Oper Oper Config

Chas Chas Chas Hello Control Control

Chas* ID Status Type* Group* Interv Vlan* Vlan License*

------+------+---------+-------+------+-------+--------+--------+----------

1 1 OK OS6900 1 10 4094 4094 AB

2 2 OK OS6900 1 10 4094 4094 AB

Notes:

The two chassis in the same Virtual-Chassis group must maintain identical configuration and operational

parameters.

sw1 (6900-A)-> ssh-chassis admin@2

Executing: ssh admin@127.10.2.65

(admin@127.10.2.65) ***********************

* *

* Welcome To Rlab LAN *

* Pod 20 Switch 2 *

* 6900-B *

* *

***********************

Password: switch

Although

the prompt is the same, you are now connected to the secondary VC. Type the following:

sw1 (6900-A)-> show virtual-chassis topology

Legend: Status suffix "+" means an added unit after last saved topology

Local Chassis: 2

Oper Config Oper

Chas Role Status Chas ID Pri Group MAC-Address

-----+------------+-------------------+--------+-----+------+------------------

1 Master Running 1 200 1 2c:fa:a2:05:cd:71

2 Slave Running 2 100 1 2c:fa:a2:05:cd:a9

Look

at the Local Chassis parameter. Now it says 2, which means you are connected to the secondary VC.

log

Type

the following to return to the master VC:

sw1 sw1 (6900-A)-> logout

logout

Connection to 127.10.2.65 closed.

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