Cisco Support Community
cancel
Showing results for 
Search instead for 
Did you mean: 
Announcements
Webcast-Catalyst9k
New Member

Tengig 3750

Quick question, I setup an iSCSI evironment using a 3750E with 2 Tengig ports.  I connected the SAN to Te1/1/1 yesterday and all worked fine.  Today Te1/1/1 was down and wouldn't come up.  So I moved the SFP to Te1/1/2 and it came up without fail.

Te1/1/1                unassigned      YES unset  down                  down   
Te1/1/2                unassigned      YES unset  up                    up

interface TenGigabitEthernet1/1/1
switchport access vlan 1099
spanning-tree portfast
!
interface TenGigabitEthernet1/1/2
switchport access vlan 1099
spanning-tree portfast


What could be the problem?

2 REPLIES
Hall of Fame Super Gold

Re: Tengig 3750

Check your logs.  It should tell you why the interface went down.  Another is to enter the command "sh interface status error".

Hall of Fame Super Silver

Re: Tengig 3750

Also note that you may need to take action to move a 3750E port out of errdisable status (if that's what happened to it). Any number of conditons can trigger such a status. As Leo noted, the log should provide the triggering event.

See the following tech note for more details:

http://www.cisco.com/en/US/tech/tk389/tk621/technologies_tech_note09186a00806cd87b.shtml#topicsubsub

617
Views
0
Helpful
2
Replies
CreatePlease to create content