issues stacking 4x6560P48X4

[mickeyway]

hi ,

bit of a novice to AOS 8 , I am trying to stack 4 of the 6560P48x4 switches . I have been reading through switch management guide and noted that if the autovfl ports are used (port 53 and 54) that the switches should stack themselves :

“Automatic Virtual Chassis can be used quickly to setup a VC. The automatic VC feature will allow a brand new chassis shipped from the factory or a chassis with no configuration to be setup as a VC without user configuration and automatically configure the VFL IDs and chassis ID assignments. To quickly setup a VC using this feature, simply connect two chassis using the default auto-VFL ports”

so i have tried that but have errors - one thing i did do before trying the stacking i changed the chasis ID on each switco so there are now 1 to 4 by using the command - Virtual-chassis chassis-id 1 configured-chassis-id 2 etc for each switch , not sure if i should have done this but when i used the autovfl ports to stack the 4 switches I get the following :


Local Chassis: 1
Oper Config Oper
Chas Role Status Chas ID Pri Group MAC-Address
-----+------------+-------------------+--------+-----+------+------------------
1 Master Running 1 100 43 78:24:59:1d:8d:2b
2 Inconsis Mis-Chassis-Group+ 2 100 231 78:24:59:22:e8:e7
3 Inconsis Mis-Chassis-Group+ 3 100 37 78:24:59:23:0c:25
4 Inconsis Mis-Chassis-Group+ 4 100 127 78:24:59:23:18:7f


i cant seem to find any info on the "inconsis" or "Mis-Chassis-Group+" errors as there should be 1 master and 3 slaves (?) as the roles and status as running on all 4.

Any guidance will be appreciated


(just an update i did reset the switches to factory default so all switches has a chassis ID of 1 but now getting a "Duplicate-Chassis" error as well as "inconsis")

[silvio]

You have not configured the chassis-group (so that are different =43, 231...).
Disconnect the vfl cable.
Than you have two ways
1) Clear all the configs (at least at chassis 2-4) with "rm *.cfg" within working
2) configure the same chassis id at all the chassis with f.e. "virtual-chassis chassis-group 1", write memory
Than reload Chassis 2-4 from working. During the start reconnect the VFL.
BR Silvio

[mickeyway]

many thanks Silvio I will try this on Monday when I am next at site

[mickeyway]

You have not configured the chassis-group (so that are different =43, 231...).
Disconnect the vfl cable.
Than you have two ways
1) Clear all the configs (at least at chassis 2-4) with "rm *.cfg" within working
2) configure the same chassis id at all the chassis with f.e. "virtual-chassis chassis-group 1", write memory
Than reload Chassis 2-4 from working. During the start reconnect the VFL.
BR Silvio

hi Silvio

quick question with your point 1 - "rm *.cfg within working" (removing all config files) will that will make switches 2 to 4 go back to a default chassis ID of 1 like factory ? Or do i need to keep the chassis IDs i have assigned to switches 2 to 4 ?

regards

Mickey

[silvio]

yes - this make it to factory. But during the boot up they will see the chassis 1 via the vfl. So the neigbor is using id 2. Than you have to wait (nearly 10 min) - than the same with the next chassis - connected to id 2.
Also a good way is to clear the config of all of them (in working and certified), power down, connect all via the vfl and power up at the same time. Than the chassis with lowest mac will be id 1 and the others are 2, 3....
BR Silvio

[mickeyway]

thankyou Silvio

i have managed to stack the 4 switches , i did have to set the chassid for switches 2,3 and 4 otherwise i kept on getting the duplicate chassis error, But after that i just added "virtual-chassis chassis-group " to each switch then reloaded all and connected the stacking cables while they were rebooting :

-> 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 1 100 1 78:24:59:1d:8d:2b
2 Slave Running+ 2 100 1 78:24:59:22:e8:e7
3 Slave Running+ 3 100 1 78:24:59:23:0c:25
4 Slave Running+ 4 100 1 78:24:59:23:18:7f

seems to be ok (?).

[silvio]

yes this okay.
There are two ways.
1) automaticly like explained with clear config
2) with config. But there is a little mistake in my explanation above. So here the correct:
"configure the chassis id 1...4 at your wished chassis, and at all the chassis the same chassis-group with f.e. "virtual-chassis chassis-group 1", write memory
Than reload Chassis 2-4 from working. During the start reconnect the VFL.

[mickeyway]

this all works now , so thankyou very much. Although i did have to set the chassis ID numbers as they just wouldnt negotiate themselves . I used the auto -vfl ports and and put each switch in the same chassis group and have stacked all four.