10-25-2007 06:38 AM - edited 03-03-2019 07:20 PM
I have recently purchased a Catalyst 6503 switch with Supervidor engine 32 and two 49 GigE blades. I have configured L3 switches before, but I am having an extrememly hard time routing my VLAN interfaces. I am even beginning to question if i did actually get a L3 Switch. Can someone help me identify if I have an L3 switch and how do i configure my switch so i can route my vlans. thanks... current modules
Mod Slot Ports Module-Type Model Sub Status
--- ---- ----- ------------------------- ------------------- --- --------
1 1 9 1000BaseX Supervisor WS-SUP32-GE-3B yes ok
15 1 1 Multilayer Switch Feature WS-F6K-MSFC2A no ok
2 2 48 10/100/1000BaseT Ethernet WS-X6148-GE-TX no ok
3 3 48 10/100/1000BaseT Ethernet WS-X6148-GE-TX no ok
Mod Sub-Type Sub-Model Sub-Serial Sub-Hw Sub-Sw
--- ----------------------- ------------------- ----------- ------ ------
1 L3 Switching Engine III WS-F6K-PFC3B SAD091903MB 2.2
10-25-2007 07:06 AM
John
These lines do indicate that you have a layer 3 switch:
15 1 1 Multilayer Switch Feature WS-F6K-MSFC2A no ok
1 L3 Switching Engine III WS-F6K-PFC3B SAD091903MB 2.2
I am not sure why you are having issues routing your VLAN interfaces. Perhaps you can post the output of show version and the config. If we have some details to work with perhaps we can help you resolve this difficulty.
HTH
Rick
10-25-2007 08:22 AM
Rick, thanks for you help.
RICSWC6503 (enable) sh ver
WS-C6503-E Software, Version NmpSW: 8.5(1)
Copyright (c) 1995-2005 by Cisco Systems
NMP S/W compiled on Oct 22 2005, 10:32:14
System Bootstrap Version: 12.2
System Boot Image File is 'bootdisk:cat6000-sup32pfc3k8.8-5-1.bin'
System Configuration register is 0x2102
Hardware Version: 1.3 Model: WS-C6503-E Serial #: FOX11070F7D
PS1 Module: PWR-1400-AC Serial #: DTH1052J197
Mod Port Model Serial # Versions
1 9 WS-SUP32-GE-3B SAD0920018W Hw : 4.5 Fw : 12.2
Fw1: 8.5(1)
Sw : 8.5(1)
Sw1: 8.5(1)
WS-F6K-PFC3B SAD091903MB Hw : 2.2
Sw :
2 48 WS-X6148-GE-TX SAL1116M0PG Hw : 7.1
Fw : 7.2(1)
Sw : 8.5(1)
3 48 WS-X6148-GE-TX SAL1116M0PW Hw : 7.1
Fw : 7.2(1)
Sw : 8.5(1)
15 1 WS-F6K-MSFC2A SAD094503XW Hw : 3.0
Fw : 12.2(17d)SXB9
Sw : 12.2(17d)SXB9
DRAM FLASH NVRAM
Module Total Used Free Total Used Free Total Used Free
1 524288K 135665K 388623K 249772K 9772K 240000K 2048K 339K 1709K
Uptime is 34 days, 23 hours, 51 minutes
RICSWC6503 (enable)
switch run-config
begin
set prompt RICSWC6503
set logout 60
!
#mac address reduction
set spantree macreduction disable
!
#vtp
set vtp domain rixixad.com
set vlan 1002 name fddi-default type fddi mtu 1500 said 101002 state active
set vlan 1004 name fddinet-default type fddinet mtu 1500 said 101004 state active stp ieee
set vlan 1005 name trnet-default type trbrf mtu 1500 said 101005 state active stp ibm
set vlan 1,34
set vlan 1003 name token-ring-default type trcrf mtu 1500 said 101003 state active mode srb aremaxhop 7 stemaxhop 7 backupcrf off
!
#ip
set interface sc0 1 10.10.10.23/255.255.255.0 10.10.10.255
set interface sl0 down
set interface sc1 down
set ip route 0.0.0.0/0.0.0.0 10.10.10.1
!
#dns
set ip dns server X.X.X.X primary
set ip dns server X.X.X.X
set ip dns enable
set ip dns domain rixixad.com
!
#ntp
set ntp client enable
set ntp server 10.10.10.15
set timezone est -5 0
set summertime enable
set summertime recurring second Sunday March 02:00 first Sunday November 02:00 60
!
#set boot command
set boot config-register 0x2102
set boot system flash bootdisk:cat6000-sup32pfc3k8.8-5-1.bin
!
#permit list
set ip permit 10.10.10.0 255.255.255.0 telnet
set ip permit 10.10.10.0 255.255.255.0 ssh
set ip permit 10.10.11.0 255.255.255.0 telnet
set ip permit 10.10.11.0 255.255.255.0 ssh
!
#mls
set mls verify length ip minimum disable
!
#acl
!
# default port status is enable
!
#module 1 : 9-port 1000BaseX Supervisor
set port name 1/9 UPLINK to C4500
!
#module 2 : 48-port 10/100/1000BaseT Ethernet
set port name 2/7 riakvm02
set port name 2/8 riakvm01
!
#module 3 : 48-port 10/100/1000BaseT Ethernet
set vlan 34 3/46-48
set trunk 3/48 on dot1q 1-4094
!
#module 15 : 1-port Multilayer Switch Feature Card
!
#module 16 empty
end
router module run-config
version 12.2
service timestamps debug uptime
service timestamps log uptime
no service password-encryption
!
hostname Router
!
ip subnet-zero
!
redundancy
high-availability
single-router-mode
mode none
!
boot system flash c6msfc2a-jsv-mz.122-17d.SXB9.bin
!
interface Vlan34
ip address 10.10.12.42 255.255.255.252
!
router bgp 1
no synchronization
bgp log-neighbor-changes
network 10.10.12.40 mask 255.255.255.252
no auto-summary
!
ip classless
no ip http server
!
dial-peer cor custom
!
end
thanks for you help.
10-25-2007 09:32 AM
John
Thanks for posting the additional information which is helpful. I see in the switch config that there are 2 VLANs with user ports. Most user ports are in VLAN 1 and a few ports are in VLAN 34. In the router config I see that VLAN 34 is configured with an IP address. This should provide routing for VLAN 34. But I do not see any VLAN interface for VLAN 1. So it will not route for VLAN 1. Is there a reason why there is not a VLAN interface for VLAN 1? I believe that this is the essence of your problem - that you have not provided routing logic for the VLAN with most of the user ports.
HTH
Rick
10-25-2007 09:49 AM
What's the need for configuring BGP without having any neighbors ?
If you want to route between Vlans, having an IP address under the SVI (switch virtual interface) should be sufficient if 'ip routing' is enabled.
inter-vlan routing does not need a dynamic routing protocol.
10-25-2007 11:14 AM
Rick and Edison,
thanks for the input. i should have put a little more information. this switch currently has 2 VLAN's. However, i do not want these VLAN's to talk to each other at all. What I have done is assign 3 ports to to VLAN 34 and i want one of those ports to connect to a TLS circuit. acting at the router for that circuit. the other two ports will have a pix 515e fw w/fo connected to it. i have been able to do this beofe with other L3 switches, but having an issue with this one. any help would be appreciated. thanks -- John
10-25-2007 11:38 AM
John
I am still not sure that I understand your issue. The original post talked about problems routing between VLANs - or at least that is what I thought it was about. Now you say that you do not want the VLANs to talk to each other.
What you have configured will allow the ports in VLAN 34 to participate in the configured subnet. But who will they talk to? There is no configured default route, no configured route to other networks or subnets, and as Edison has pointed out the BGP with no neighbors will not learn any routes. So who will they talk to?
HTH
Rick
10-25-2007 11:46 AM
Rick,
on the other end of one of those ports will be a another router the other half of a /30 subnet. within the router module of my switch i created a vlan 34 with my half of the /30 subnet. the other two ports will connect to a pix 515e fw w/fo. i am just trying to have one of the 3 ports on the vlan 34 to talk to the router at the other end of the circuit. hope this explains it more. i have been able to create this with other L3 switches. this one however it seems that instead of the swithc and router options working together they are separated. for example i created the vlan34 on the switch side and assigned the ports, then i had to go into the router module, create the vlan34 again ans assign it an IP address.
thanks,
john
10-25-2007 11:55 AM
What's the provider transit vlan ? You must have this vlan created in your switch's vtp database and configured on the switchport facing the TLS handoff.
Same configuration must be done at the remote location.
Once you do that, the devices should be able to see each other via CDP.
There isn't any routing involved on what you are trying to accomplish. It's pure Layer2.
10-25-2007 12:18 PM
I agree. I should be able to do this all at layer 2, however, even with VTP configured and the VLAN configured, I have not been able to just have the two ends talk to each other. The other Network administrator is using a Layer 3 switch with VLAN34 configured on this ports.
Anyway, i will continue to troubleshoot it. thanks for your help.
10-25-2007 12:21 PM
You need to contact your TLS provider and ask them for the transit Vlan. This information is vital and without this, they won't be able to see each other.
10-25-2007 12:29 PM
I will contact them to get this information. however when i connect the circuit directly to my pix firewall, everythign works. the only reason i cannot do this is because of the failover appliance. this is why i was trying to use the router features of the L3 switch.
10-25-2007 12:43 PM
The PIX would be a routed port therefore it sounds like your TLS was provisioned as Layer3 TLS, not Layer2.
What IP subnet the PIX was using when it worked vs the one being used in your 6500 now ?
10-26-2007 03:45 AM
i have two subnets. currently i am using a /30 on the switch. this is the configuration on the other side. when i plugged it directly into the firewall, i was using a /28 with the gateway being the switch/router on the other end of the TLS. i think that you were correct to begin with, i think that the TLS is provisioned as a L2 TLS. this is why i am pulling my hair out because i should be able to take a few ports on my switch, configure the VLAN and all should work, i mean i have that working right now with other circuits and other VLAN's from my corporate network. but it does not seem to work with this circuit. Also for some other reason, when I connected to the firewall, i had the interface hardcoded as full/100, which works, but when i do auto/auto, it becomes half/10 and it stops working. Extermely fursturating. Now back on the switch, since i was able to make it work with the firewall working as the router for the circuit, i thought i could use the switches router capabilities to accomplish the same action. but as i think about it, it seems that the firewall was just acting as a part of the extended LAN since the gateway was at the other end of the TLS circuit. i just need to get in touch with the SA on other end and go over his configuration, maybe he is doing something flaky and i think that the problem is on my end. thaks for you help.
10-26-2007 05:56 AM
The speed/duplex needs to match with the provisioned circuit. Remember, you have a inter-switch link with the provider's switch and that switch hard-code its speed in order to limit your bandwidth.
What you are seeing, it's a duplex mismatch behavior. Make sure to hard-code speed/duplex to match provider's.
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