Hello all,
I have always done my port monitoring (SPAN) on Cisco layer 3 switches with no issues. This time I am trying to do this on a Cisco 2901 router:
Cisco IOS Software, C2900 Software (C2900-UNIVERSALK9-M), Version 15.1(4)M2, RELEASE SOFTWARE (fc1)
System image file is "flash0:c2900-universalk9-mz.SPA.151-4.M2.bin
I need to have the source port gig0/0 and destination port gig0/1. There is something about the gig port enumeration (slot/port#) that makes the command rejected. It is self explanatory:
#sh ip int brie
Interface IP-Address OK? Method Status Protocol
Embedded-Service-Engine0/0 unassigned YES NVRAM administratively down down
GigabitEthernet0/0 xxx.xxx.xxx.xxx YES NVRAM up up
GigabitEthernet0/1 unassigned YES NVRAM up up
Serial0/0/0:0 unassigned YES unset up up
Serial0/0/1:0 unassigned YES unset up up
Serial0/1/0:0 unassigned YES unset up up
Serial0/1/1:0 unassigned YES unset up up
Multilink1 xxx.xxx.xxx.xxx YES NVRAM up up
#conf t
#
monitor session 1 destination interface gigabitEthernet 0/0
% Incomplete command.
#monitor session 1 destination interface gigabitEthernet 0/0?
/ : <0-1>
(config)#monitor session 1 destination interface gigabitEthernet 0/0/?
<4294967295-0> GigabitEthernet interface number
(config)#monitor session 1 destination interface gigabitEthernet 0/0/0?
% Unrecognized command
(config)#monitor session 1 destination interface gigabitEthernet 0/0/1?
% Unrecognized command
Lenexa-MPLS(config)#monitor session 1 destination interface gigabitEthernet 0/0/1 ?
% Unrecognized command
(config)#monitor session 1 destination interface gigabitEthernet 0/0/1
It doesn't matter what slot or port number I use, it is always rejected. The command is rejected for Both destination and source gig interfaces. I tried a wide variety of slot/port numbers. To my best understanding the complete port names are: GigabitEthernet0/0 and GigabitEthernet0/1, so why does it think there has to be another digit after 0/0 or 0/1? Does it have anything to do with the Embedded-Service-Engine0/0 being administratively down?
Any help is appreciated. I cannot find this specific issue beinbg discussed here.
Thank you!
