router 2911 POrt NOt Up

[srikanth ath]

Hi

how many vlans can i create in  router 2911.

i have created four  sub interfaces with vlans, but only two are working/pinging, is there any limitations of vlan or sub int created.

wavecrest# sh version

Cisco IOS Software, C2900 Software (C2900-UNIVERSALK9-M), Version 15.0(1)M5, RELEASE SOFTWARE (fc2)

Technical Support: http://www.cisco.com/techsupport

Copyright (c) 1986-2011 by Cisco Systems, Inc.

Compiled Wed 23-Feb-11 15:41 by prod_rel_team

ROM: System Bootstrap, Version 15.0(1r)M9, RELEASE SOFTWARE (fc1)

wavecrest uptime is 3 days, 1 hour, 36 minutes

System returned to ROM by power-on

System image file is "flash0:c2900-universalk9-mz.SPA.150-1.M5.bin"

Last reload type: Normal Reload

thanks

srikanth

[Latchum Naidu]

Hi srikanth,

There is no any limitations having subinterfaces on router but we need to consider the load on the router.
If you are unable to ping the vlan interface then it doesnt mean that there is limitation.
Make sure you have atleast interface associated with that vlan (which is not pinging).
And make sure the vlan is created in vlan database file.
And finally what is the vlan status?

Please rate the helpfull posts.
Regards,
Naidu.

[viswamin]

Hi Srikanth,

4 sub interfaces is not a big number. your router should be able to support that.

can you share the following:

1. your  running configuration.

2. show int vlan output?

-Vijay

[srikanth ath]

the interface is not up after assigning an ip to it or in the sub interface..

im using two interface for LAN and ONe for Wan..

gig0/0 ------is UP-----and all the sub interface Ips i can see in the sh ip route command.

gig 0/2 -----is not up -----and i dont even see the IP as the connected subnet in sh ip route.

here is the major difference i have seen

avecrest#sh controllers gigabitEthernet 0/0

nterface GigabitEthernet0/0

= Hardware =

ardware is PLATFORM SGMII INTERFACE

WIDB: 30B3D33C, INSTANCE: 2933D400, FASTSEND: 21192EC0, MCI_INDEX: 0

oute Cache Flag: 11

  Software filtered frames: 221

  Unicast overflow mode: 0

  Multicast overflow mode: 1

  Promiscuous mode: 0

  Total Number of CAM entries: 1

Port Stopped: N

Internal Loopback Set: N

2. 

wavecrest# sh controllers gigabitEthernet 0/2

Interface GigabitEthernet0/2

= Hardware =

Hardware is PLATFORM SGMII INTERFACE

HWIDB: 30B5FEF0, INSTANCE: 30B60C00, FASTSEND: 21192EC0, MCI_INDEX: 0

Route Cache Flag: 11

TX_COUNT: 0, TX_LIMITED: 0, TX_HEAD: 0, TX_TAIL: 0

TX_MIN_SIZE: 32, TX_MAX_SIZE: 512, TX_CURRENT_SIZE: 128

RX STARVES: 0

Software MAC Address Filter (hash:length/addr/mask/hits)

--------------------------------------------------------

  0x000:  0  ffff.ffff.ffff  0000.0000.0000         0

  0x093:  0  4055.39b8.1faa  0000.0000.0000         0

  0x0C0:  0  0180.c200.0002  0000.0000.0000         0

  0x0C0:  1  0100.0ccc.cccc  0000.0000.0000         0

  0x0C5:  0  0180.c200.0007  0000.0000.0000         0

  Software filtered frames: 0

  Unicast overflow mode: 0

  Multicast overflow mode: 1

  Promiscuous mode: 0

  Total Number of CAM entries: 1

Port Stopped: Y

Internal Loopback Set: N

[cadet alain]

hi,

post your config and output from:

sh int g0/0 and sh int g0/2

sh ip int br and sh ip route

Regards.

Alain