07-24-2009 07:20 AM - edited 03-04-2019 05:32 AM
Greetings-
I currently have a 2821 running v12.4(3i) with an internal WIC-1DSU-T1-V2 module. I am increasing my internet speed from a single T1 to a 2xT1, which entails 2 RJ-45 cable handoffs from my Verizon demark. To accommodate, do I only need to purchase an additional WIC-1DSU-T1-V2 module and insert into chassis? Are there config examples available for aggregating 2 T1 links? Or is there some other hardware / software requirements? Can the 2800 series handle 2 WIC-1s?
Thanks
Scott
Solved! Go to Solution.
07-24-2009 07:46 AM
Hi Scott,
YEs, the 2821 can handle multiple T1s. If you want ot aggregate the two T1s into a single 3mbps circuit, you'll want to use PPP multilink
Here's an example of how you'd configure that:
Interface s0/1/0
encapsulation ppp
ppp multilink
ppp multilink group 1
interface s0/2/0
encapsulation ppp
ppp multilink
ppp multilink group 1
interface Multilink1
ip address x.x.x.x x.x.x.x
ip access-group 101 in
ppp multilink
ppp multilink group 1
etc
etc
The general idea is that the multilink interface acts as the aggregator, where you apply your IP, ACL etc etc. The individual T1s don't have much config on them.
07-24-2009 07:48 AM
Scott-
A 2821 has no problems handling 2 T1's. You can add the second card or buy a 2 port card, either will work just fine. Here's a link on configuring them in a multilink bundle-
https://packetpros.com/cisco_kb/VWIC-MFT_MultiLinkPPP.html
Hope it helps.
07-24-2009 07:46 AM
Hi Scott,
YEs, the 2821 can handle multiple T1s. If you want ot aggregate the two T1s into a single 3mbps circuit, you'll want to use PPP multilink
Here's an example of how you'd configure that:
Interface s0/1/0
encapsulation ppp
ppp multilink
ppp multilink group 1
interface s0/2/0
encapsulation ppp
ppp multilink
ppp multilink group 1
interface Multilink1
ip address x.x.x.x x.x.x.x
ip access-group 101 in
ppp multilink
ppp multilink group 1
etc
etc
The general idea is that the multilink interface acts as the aggregator, where you apply your IP, ACL etc etc. The individual T1s don't have much config on them.
07-24-2009 07:54 AM
Perfect!
Thanks all for the quick help. I'll get a bigger pipe yet!
S.
07-24-2009 07:48 AM
Scott-
A 2821 has no problems handling 2 T1's. You can add the second card or buy a 2 port card, either will work just fine. Here's a link on configuring them in a multilink bundle-
https://packetpros.com/cisco_kb/VWIC-MFT_MultiLinkPPP.html
Hope it helps.
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