Campus Switching and Routing

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VSF only forms with one link

Hi guys,

 

I want to enable VSF between two 2930 switches using two links. I have used the following commands:

 

(config)# vsf member 1 link 1 50,52
(config)# vsf enable domain 1

 

After this, the VSF has come up, but only with one link, the other one shows the following error:

 

Piso1-2930F-48G-PoEP-4SFPP# show vsf link

VSF Member 1

Link Peer Peer
Link Link-Name State Member Link
---- ---------- -------- ------ ----
1 I-Link1_1 Up 2 1
2 I-Link1_2 Down 0 0


VSF Member 2

Link Peer Peer
Link Link-Name State Member Link
---- ---------- -------- ------ ----
1 I-Link2_1 Up 1 1
2 I-Link2_2 Down 0 0

Piso1-2930F-48G-PoEP-4SFPP#
Piso1-2930F-48G-PoEP-4SFPP# show vsf link detail
VSF Member: 1 Link: 1

Port State
-------- ------------
1/50 Up: Connected to port 2/50


VSF Member: 1 Link: 2

Port State
-------- ------------
1/52 Error: Port connected to self

 

VSF Member: 2 Link: 1

Port State
-------- ------------
2/50 Up: Connected to port 1/50
2/52 Error: Peer port on Switch type JL256A is not VSF capable

 

I have seen the new config the switch has made and is this (related to VSF):

 

vsf
enable domain 1
member 1
type "JL256A" mac-address ecebb8-30e7c0
priority 128
link 1 1/50
link 1 name "I-Link1_1"
link 2 1/52
link 2 name "I-Link1_2"
exit
member 2
type "JL256A" mac-address ecebb8-3018c0
priority 128
link 1 2/50,2/52
link 1 name "I-Link2_1"
link 2 name "I-Link2_2"
exit

 

The switch has put interface 52 on the second switch also within link 1 and not link 2.

 

What is the reason for this error? Is possible to form a VSF between two switches only with one DAC cable? Please your help!

 

Regards,
Julián

Contributor I

Re: VSF only forms with one link

as far as i know.it can be either chain or ring topology.are running on same firmware?

Re: VSF only forms with one link

Hi harveyysip,

 

Yes, they are running the same version. I think I know where is the problem, I am placing port 50 into link 1 and port 52 into link 2, but there is only one VSF link between the two switches, let's say link 1. I have to place both ports within link 1. I will try tomorrow again and we'll see...

By the way, between two switches chain is the only possible topology.

 

Regards,

Julián

Re: VSF only forms with one link

Hi guys,

 

The problem I had is I placed each port in different VSF links, but between two switches there is only one VSF link. One I placed both ports in the same VSF link the VSF formed as expected. The correct command is (I am using ports 50 and 52):

 

(config)# vsf member 1 link 1 50,52

(config)# vsf enable domain 1

 

Regards,

Julián

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