07-20-2005 05:26 AM - edited 03-02-2019 11:26 PM
Does anyone know if the 2811 fast ethernet interface support ISL encapsulation? Only found support for ISL on the etherswitch interface but nothing mentioned about for the default fastethernet interface.
Joseph Kwek
07-20-2005 05:44 AM
Hi Joseph,
8211 integrated service router wont support ISL encapsulation.it support only dot1q.
"Only 802.1Q is supported. Inter-Switch Link (ISL) is not supported; it is proprietary to Cisco and is not commonly deployed."
Please refer : the follwoing URL "http://www.cisco.com/en/US/partner/products/ps5854/products_qanda_item0900aecd80169bf0.shtml"
Please rate if your found this useful :-)
Regards
PSM
07-20-2005 07:09 PM
Noted & Thanks.
However, the Cisco Navigator Feature indicates that ISL VLAN is supported on 2811. Any comment?
07-20-2005 07:24 PM
Its possible the Cisco Navigator documented it wrong. I tested this on a 2821 (Note it has Gigabit rather than FE interface). and it didnt show any thing other than 802.1q.
GDT2821VG(config-if)#int gi 0/1.1
GDT2821VG(config-subif)#en
GDT2821VG(config-subif)#encapsulation ?
dot1Q IEEE 802.1Q Virtual LAN
GDT2821VG(config-subif)#encapsulation
07-20-2005 07:29 PM
Yes, I got the same thing on my side.
Just need to confirm.
07-20-2005 07:48 PM
I think that FN is not showing the right info. I ran the ISL feature check on FN for 2821 and it says its supported, which is not correct.
07-20-2005 10:27 PM
Jospeh,
I support with Shanky's point , coz even i tried it.thats is why i gave the that answer in my previous note, i faced the same problem once... I think you got the solution right?
Regards
PSM
07-21-2005 07:59 AM
I believe that I have no other choice but to use qot1Q as the solution.
Thanks guys.
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