10-30-2008 08:35 AM - edited 03-06-2019 02:13 AM
What is the command to make my second eth port standby? I have to have fault redundant connection for the 3800 utulizing the second eth port.
My current config is:
interface GigabitEthernet0/0
description SwitchPort xx
ip address 172.19.20.15 255.255.255.224
duplex auto
speed auto
media-type rj45
!
interface GigabitEthernet0/1
no ip address
shutdown
duplex auto
speed auto
media-type rj45
Thanks much!
Solved! Go to Solution.
10-30-2008 08:57 PM
From a Q&A on the 3800
http://www.cisco.com/en/US/prod/collateral/routers/ps5855/prod_qas0900aecd8016a953.html
Q. Is Cisco EtherChannel® supported on the two onboard Gigabit Ethernet ports?
A. No. Cisco EtherChannel is not supported on the onboard Gigabit Ethernet ports. Instead, Cisco EtherChannel can be configured on Gigabit Ethernet HWICs, Gigabit Ethernet network modules, and Fast Ethernet ports on Cisco EtherSwitch HWICs and network modules when the ports are in switchport mode.
So etherchannel isn't an option with the two builtin ports.
10-30-2008 12:13 PM
Are these going to be used as gateways for hosts or are you needing failover for internet traffic outbound?
--John
10-30-2008 04:02 PM
Normally you can't configure two of the same devices on the same subnet. However, the 3800 supports manual Etherchannel or you can route across both links.
10-30-2008 07:00 PM
how would I go about configuring this?
Thanks!
10-31-2008 03:54 AM
10-30-2008 08:57 PM
From a Q&A on the 3800
http://www.cisco.com/en/US/prod/collateral/routers/ps5855/prod_qas0900aecd8016a953.html
Q. Is Cisco EtherChannel® supported on the two onboard Gigabit Ethernet ports?
A. No. Cisco EtherChannel is not supported on the onboard Gigabit Ethernet ports. Instead, Cisco EtherChannel can be configured on Gigabit Ethernet HWICs, Gigabit Ethernet network modules, and Fast Ethernet ports on Cisco EtherSwitch HWICs and network modules when the ports are in switchport mode.
So etherchannel isn't an option with the two builtin ports.
10-30-2008 10:34 PM
basically then, I would need to configure something on the switch for this type of redundancy correct?
11-07-2008 07:30 AM
Sorry I forgot to rate your message. That's what I was looking for. Thanks much! I guess I will need to purchase the HWICs for this to work. I do not see any other way around this.
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