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| marinos9 2001-08-13, 8:02 am |
| Help with 2900 series switch
PROBLEM: PROTOCOL DOWN
Well I have a environment with VLANs not coming up. Looks like this
1- I've assigned IP to VLANs
2- Assigned ports to VLANs
3- Issued a "NO SHUTDOWN" on both VLANs and Interfaces to ensure everything is Administratively up
4- all interfaces have been proven funtional
When I issue a "sh ip int brief" command it shows as protocol down.
Any suggestions ???
Server 1 Server 2
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______________________________
___________
VLAN 1 VLAN 10
CAT 2900
______________________________
___________
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Router1 <-----T1--------> Router2
Any help would be appreciated
Thanks | |
| marinos9 2001-08-13, 9:14 am |
| noticed that drawing didn't show as drawn
and I missed a very important point. I don't want to share any ports on both VLANs just want routers to do the routing among VLANS and don't want to use ISL as VLAN 1 is already used
route statements are fine just VLAN and protocol won't come up
Server 1 = 172.16.30.3
VLAN 1 = 172.16.30.1
Router 1 e0 = 172.16.30.2
S0 = 172.16.20.1
T1
Router 2 S0 = 172.16.20.2
e0 = 192.168.1.2
VLAN 2 = 192.168.1.1
Server 2 = 192.168.1.3 | |
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| Marinos9,
I hope that is the answer you want:
I have had this problem recently. In fact it is not a prob. The address which is affected to the VLAN is the admin address. Only one admin address is active in a catalyst. You must choice your admin VLAN address and the good Vlan Number.
Example:
interface VLAN1
ip address 10.254.1.12 255.255.255.128 !
! this address is not seen by the routers on the !VLAN1, but the VLAN 1 Works good
no ip directed-broadcast
no ip route-cache
shutdown
! only one administravive VLAN Address, and it is !not possible to up more thane VLAN adress in the !same time.
!
interface VLAN2
!this one is seen by the routers on the VLAN2
ip address 10.254.1.132 255.255.255.128
no ip directed-broadcast
no ip route-cache
! | |
| marinos9 2001-08-13, 1:12 pm |
| when you did a "show ip int brief" did it show up as "Administratively down" and protocol "down" ????
it's strange because when I do a traceroute it doesn't even show the hop of the VLAN ip address. I can telnet to both routers just fine though so I do know that connectivity is there
so what your saying is the 2900 is not like the CAT 5000 or 6500 series. In the 5500 series you can view all active VLANs and they show as "YES nvram up" and protocol "up" ????? | |
| whytokayok 2001-08-13, 4:29 pm |
| What are your subnet masks? | |
| marinos9 2001-08-14, 7:09 am |
| 24 bit subnet mask accross the board
Server 1 = 172.16.30.3 / 24
VLAN 1 = 172.16.30.1 /24
Router 1 e0 = 172.16.30.2 /24
S0 = 172.16.20.1 /24
T1
Router 2 S0 = 172.16.20.2 /24
e0 = 192.168.1.2 /24
VLAN 2 = 192.168.1.1 /24
Server 2 = 192.168.1.3 /24 | |
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| Marinos9,
Yes I have PROTOCOL DOWN, look that (another switch 2924XL with Fast Ethernet):
2924-1#sh ip int brief
Interface IP-Address OK? Method Status Protocol
VLAN1 172.34.1.4 YES NVRAM up up
VLAN2 172.34.1.134 YES NVRAM administratively down down
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In this case, I can't up the VLAN2 admin address, that is that I want:
ALT2924-1#sh run
interface VLAN1
description VLAN1 pour le reseau 172.34.1.0/255.255.255.128
ip address 172.34.1.4 255.255.255.128
no ip directed-broadcast
no ip route-cache
!
interface VLAN2
ip address 172.34.1.134 255.255.255.128
no ip directed-broadcast
no ip route-cache
shutdown
!
If I shut the VLAN1 (the admin address), then I can up the VLAN2 (cf. the other mail)
If you want I do another command.. |
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