Charles,
You should only need to type 'switch mode accept virtual' just once,
on the primary switch. If you typed it on each switch it tells me the
VSL link never formed properly in initial conversion process.
Cheers,
Brad
Sent from my iPhone
Brad Hedlund, CCIE 5530
Cisco Systems, Inc.
Technical Solutions Architect
Data Center
http://bradhedlund.com
On Jul 11, 2010, at 11:33 AM, "Church, Charles" <charles.chu...@harris.com
> wrote:
Thanks Brad. I did that step on both, both of them rebooted, but
both come up as the active sup, since the VSL link won't come up.
The config on switch 2 is correct Reinhold, using port channel 20
and link 2 on that one. I'll be back with the devices tomorrow
morning, I'll dig through the logs and some other int
troubleshooting tomorrow.
Chuck
-----Original Message-----
From: Brad Hedlund (brhedlun) [mailto:brhed...@cisco.com]
Sent: Sunday, July 11, 2010 12:19 PM
To: Church, Charles
Cc: Reinhold Fischer; cisco-nsp@puck.nether.net
Subject: Re: [c-nsp] 10 gig ethernet interface up, line protocol
down on VSL connection
Charles,
FWIW, this happened to me once and it turned out I forgot the last
step in the VSS conversion process:
'switch mode accept virtual'.
Cheers,
Brad
Sent from my iPhone
Brad Hedlund, CCIE 5530
Cisco Systems, Inc.
Technical Solutions Architect
Data Center
http://bradhedlund.con
On Jul 11, 2010, at 11:09 AM, "Church, Charles" <charles.chu...@harris.com
wrote:
-----Original Message-----
From: Reinhold Fischer [mailto:reinhold.fisc...@gmx.net]
Sent: Sunday, July 11, 2010 11:12 AM
To: Church, Charles
Cc: cisco-nsp@puck.nether.net
Subject: Re: [c-nsp] 10 gig ethernet interface up, line protocol
down on VSL connection
Are you negotiating the channel (PAGP/LACP) or is it configured to
channel mode "ON"? IIRC Cisco recommends "ON" for the VSL. The
behaviour that you descibe looks like one interface is configured to
mode ON and the other end tries to negotiate the portchannel.
hth,
Reinhold
Yep, I'm using 'on'. Here's the config for the Po and physical
ints. Same on the other one too:
interface Port-channel10
description Switch 1 link to Switch 2
no switchport
no ip address
switch virtual link 1
mls qos trust cos
no mls qos channel-consistency
end
Router#sh run int t1/5/4
Building configuration...
Current configuration : 116 bytes
!
interface TenGigabitEthernet1/5/4
no switchport
no ip address
mls qos trust cos
channel-group 10 mode on
end
Thanks,
Chuck
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