03-11-2007 07:20 PM - edited 03-05-2019 02:50 PM
Does a Cisco 2501 Router support InterVLAN Routing?
Does it support 802.1Q or ISL trunking?
What are the commands?
Which trunking does Cisco 2912XL-EN Switch support?
How do I find out the capabilities of Cisco devices.
03-11-2007 07:55 PM
They should both support 802.1Q and ISL
For example, 2912XL-EN port FastEthernet0/12 is connected to 2501 port FastEthernet0. Try the following commands
For 802.1Q
1. 2501 Router
!
interface fastethernet0
no ip address
full-duplex
speed 100
!
interface fastethernet0.1
encapsulation 802.1Q
ip address 192.16.0.1 255.255.255.0
2. 2912XL-EN Switch
!
interface fastethernet0/12
switchport trunk encapsulation dot1q
switchport mode trunk
full-duplex
speed 100
For ISL
1. 2501 Router
!
interface fastethernet0
no ip address
full-duplex
speed 100
!
interface fastethernet0.1
encapsulation ISL
ip address 192.16.0.1 255.255.255.0
2. 2912XL-EN Switch
!
interface fastethernet0/12
switchport trunk encapsulation isl
switchport mode trunk
full-duplex
speed 100
03-11-2007 08:26 PM
Cisco 2501 does not have fastethernet interface. It is a ethernet.
Encapulation command is not available on subinterface.
03-11-2007 08:05 PM
it is recommended to use 100Mbps FastEthernet for the InterVlan Routing...
and most probably 2501 router is not supporting the Intervlan routing... not sure... just check...
fire the following commands:
router#conf t
#interface ethernet 0
#encapsulation ?
if you find any dot1q or ISL option then that router is supporting intervlan routing... if you dont find any option like dot1q and ISL then you can not configure the Intervlan routing...
regards
Devang
03-11-2007 09:19 PM
The chip set used in the 2500 series routers (a very old part of the product line) do not support any kind of trunking.
HTH
Rick
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