01-02-2004 10:07 PM - edited 03-02-2019 12:39 PM
Hi all
I have 2 swtiches located different places
distance of 2KM
i will explain how the setup look like
main office in central location
branch office different location around 2KM distance
main office having 3548XL switch and VLAN Linux Server
branch office having 2924XL with different VLANS
iam having dark fiber from office to office
different routes
both the routes of cable are working, when i tested individual link.
i want to make them loadbalance and failover
so i started working like this
internet--(eth0)Linux(eth1-vlan 30-40)--(fe0/1)switch(fe0/2-fe0/3)-----fiber2links---(fe0/2-fe0/3)switch2924(fe0/4-vlan30)--clent
above setup is mine
my config
3548XL
interface FastEthernet0/1
switchport trunk encapsulation dot1q
switchport trunk allowed vlan 1,30-40,1002-1005
switchport mode trunk
!
interface FastEthernet0/2
port group 1
switchport trunk encapsulation dot1q
switchport trunk allowed vlan 1,30-40,1002-1005
switchport mode trunk
!
interface FastEthernet0/3
port group 1
switchport trunk encapsulation dot1q
switchport trunk allowed vlan 1,30-40,1002-1005
switchport mode trunk
!
interface FastEthernet0/4
!
my config of 2924XL
interface FastEthernet0/2
keepalive 10
port group 1
switchport access vlan 22
switchport trunk encapsulation dot1q
switchport trunk allowed vlan 1,30-40,1002-1005
switchport mode trunk
no cdp enable
!
interface FastEthernet0/3
keepalive 10
switchport trunk encapsulation dot1q
switchport trunk allowed vlan 1-22,1002-1005
switchport mode trunk
no cdp enable
!
interface FastEthernet0/4
keepalive 10
switchport access vlan 30
no cdp enable
!
when i connect 3548xl(fe0/2)-2924XL(fe0/2)
when i connect 3548xl(fe0/3)-2924XL(fe0/3)
the ports are not going up
what will be wrong with my setup
any recomendations will be appriciate
one more thing, when iam adding vlan 30-40 in my port
why vlan 1 also adding in to the same port
thanks in advance
hari
01-03-2004 01:12 AM
Hello Hari,
not sure if that is what is configured on your 2924XL, but:
interface FastEthernet0/2
keepalive 10
port group 1
--> switchport access vlan 22
switchport trunk encapsulation dot1q
switchport trunk allowed vlan 1,30-40,1002-1005
switchport mode trunk
no cdp enable
the interface cannot be trunk and access port at the same time, so take that line out (actually I think that the IOS would not let you type this in anyway).
There are a couple of things to keep in mind when configuring trunking on the 2900XL/3500XL switches, here is what the documentation says:
On a 4MB DRAM Catalyst 2900XL switch, trunking is only supported with the following trunking-capable modules:
WS-X2914-XL-V
WS-X2922-XL-V
WS-X2924-XL-V
WS-X2931-XL
WS-X2932-XL
2900XL and 3500XL switches do not support Dynamic Trunking Protocol (DTP). Thus, it is recommended that you use the nonegotiate option (for the switchport trunk command) on the other side of the trunk link This will prevent the XL switch from receiving DTP frames (from the peer) that it cannot proccess.
You might want to check this document:
Configuring ISL/802.1q Trunking Between Catalyst 2900XL/3500XL/2940/2950/2970 and CatOS Switches
Regards,
Georg
01-03-2004 03:46 AM
Hi Georg
thanks for reply
it was my mistake, i remove the VLAN 22
i think both of my switches are trunk enabled
iam sure that they works
since i have used single port with dot.q with Linux box
now iam extending the Services with 2 ports
so i can do load balace or failover the links
i had visited the link, but the example of mine from this doc only, i made some changes as per my setup
i need to look this, how to make my setup work
can you post me some kind of example config if possible
that will help me lot
thanks
hare
01-03-2004 05:28 AM
Hello,
can you post the output of the comamnd:
show int fastEthernet X/X switchport
for all interfaces in the port channel ? The output should look similar to this:
Name: Fa0/1
Switchport: Enabled
Administrative mode: trunk
Operational Mode: trunk
Administrative Trunking Encapsulation: dot1q
Operational Trunking Encapsulation: dot1q
Negotiation of Trunking: Disabled
Access Mode VLAN: 0 ((Inactive))
Trunking Native Mode VLAN: 1 (default)
Trunking VLANs Enabled: ALL
Trunking VLANs Active: 1,2
Pruning VLANs Enabled: 2-1001
Priority for untagged frames: 0
Override vlan tag priority: FALSE
Voice VLAN: none
Appliance trust: none
Self Loopback: No
Also, can you post the output of the command:
show vtp status
from both switches ?
Also, check for spanning tree failures with the command:
debug spantree tree
Here is a link with sample configs for 802.1Q trunks on 3500XL (the 2900XL are configured the same way):
CISCO CATALYST 3500 SERIES XL SWITCHES
Creating and Maintaining VLANs
Regards,
Georg
01-03-2004 05:58 AM
Hi
thanks for the quick reply
here is teh out put wat you asked for
3500XL#show interfaces fastEthernet 0/2 switchport
Name: Fa0/2
Switchport: Enabled
Administrative mode: trunk
Operational Mode: trunk
Administrative Trunking Encapsulation: dot1q
Operational Trunking Encapsulation: dot1q
Negotiation of Trunking: Disabled
Access Mode VLAN: 0 ((Inactive))
Trunking Native Mode VLAN: 1 (default)
Trunking VLANs Enabled: 1,30-40,1002-1005
Trunking VLANs Active: 1
Pruning VLANs Enabled: 2-1001
Priority for untagged frames: 0
Override vlan tag priority: FALSE
Voice VLAN: none
Appliance trust: none
3500XL#show vtp status
VTP Version : 2
Configuration Revision : 0
Maximum VLANs supported locally : 254
Number of existing VLANs : 5
VTP Operating Mode : Transparent
VTP Domain Name : office.net
VTP Pruning Mode : Disabled
VTP V2 Mode : Disabled
VTP Traps Generation : Disabled
MD5 digest : 0x11 0xD1 0x11 0x31 0x61 0xC1 0xCF 0x60
Configuration last modified by 0.0.0.0 at 0-0-00 00:00:00
iam going through the docs
lets see how i can make the config
one more thing, iam working on a online switch,
by making changes, my rest of the port will not effect anything right ??
hari
01-19-2004 08:22 AM
Hi all
iam back to work again
i been trying to achive this setup
could not able to
could some expert put some coment on this setup
that will be great
hari
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