03-24-2010 04:39 AM - edited 03-06-2019 10:17 AM
Hi all,
Please forgive me as I'm a Cisco newbie... Little bit of experience in the CLI over the years, but nothing hardcore... I have a Cisco WS-C2960G-48TC-L. At present, I have web access to its admin panel, and in a real pinch I could connect to it over CLI. If possible, however, I'd rather stick to the admin panel or the use of the Cisco Network Assistant, which I also have installed on my workstation...
Anywho, what I'd like to do is "team" a pair of NIC cards on one of the servers I have attached to this switch. I know how to team the NICs on the Server 2008 R2 server, but I'm told that I then need to "create a port channel on the Cisco Switch and then put both the interfaces on the switch into that PO".
That was advice I got on another forum, but I'm not really sure what it means or how to do it on the 2960.
Can someone give me a hand, please? I'd really appreciate it. Thanks!
Chris
03-25-2010 05:17 AM
*** BUMP ***
Can someone give me a hand with this, please? Thanks!
03-25-2010 06:06 AM
Hello Chris,
the suggestion is correct
A further recommandation is to use the standard based LACP protocol to negotiate membership on the links (and to detect failure)
Configuration on the CLI can be the following:
link C2960 configuration guide
a) you prepare member links with same configuration (including speed and duplex if applicable)
int gi0/5
switchport
swtchport mode access
switchport access vlan X
sh
nt gi0/6
switchport
swtchport mode access
switchport access vlan X
sh
b) you associate the member links to the LACP channel
int gi0/5
channel-group N mode active
int gi0/6
channel-group N mode active
this creates a logical port-channel N interface
c) you enable the member links
! note the use of spaces in interface range command otherwise command is rejected
interface range gigabitethernet 0/5 - 6
no shut
the idea is to use range to have both interfaces started at the same time. this is considered best practice.
verify if you need to unshut also port-channel N
use
sh etherchannel summary
to monitor the status of LACP
note: to use LACP you need to enable it on your server or the switch will turn down the ports if doesn't listen LACP messages on them
refer to your server documentation for doing this
Hope to help
Giuseppe
03-25-2010 10:47 PM
Hi all,
Please forgive me as I'm a Cisco newbie... Little bit of experience in the CLI over the years, but nothing hardcore... I have a Cisco WS-C2960G-48TC-L. At present, I have web access to its admin panel, and in a real pinch I could connect to it over CLI. If possible, however, I'd rather stick to the admin panel or the use of the Cisco Network Assistant, which I also have installed on my workstation...
Anywho, what I'd like to do is "team" a pair of NIC cards on one of the servers I have attached to this switch. I know how to team the NICs on the Server 2008 R2 server, but I'm told that I then need to "create a port channel on the Cisco Switch and then put both the interfaces on the switch into that PO".
That was advice I got on another forum, but I'm not really sure what it means or how to do it on the 2960.
Can someone give me a hand, please? I'd really appreciate it. Thanks!
Chris
Hi Chris,
Creating a port channel in switch means youneed to bundle two ports which are coming from server end to switch with common negotioation protocol like LACP or direct mode on at switch end and at server nic teaming configiration time.
Check out the belowl ink for etherchannel configuiration in 2960 switches
Hope to Help !!
Ganesh.H
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