Monday, February 11, 2013

Cisco 2811 Frame-Relay Switch

Just got the Cisco 2811 Frame Relay Switch

Completed rack install/reconfiguration and frame-relay hub-and-spoke topology with point-to-point links.

Current Config (All under EIGRP AS 999)

Cisco 2851 (CORP) 
           -Serial 0/0/0 (Frame-Relay Encapsulation)
                                -S0/0/0.16 P-to-P >> 192.168.254.2/30 >> DLCI 16
                                -S0/0/0.18 P-to-P >> 172.16.32.2/30 >> DLCI 18

Cisco 2811 (FR - SW / DCE)
           -Serial 0/0/0 (Frame-Relay Encap --- CORP)
                                 -DLCI 16 in >> DLCI 17 out (S0/1/0)
                                 -DLCI 18 in >> DLCI 19 out (S0/2/0)
           -Serial 0/1/0 (Frame-Relay Encap --- BR1)
                                 -DLCI 17 in >> DLCI 16 out (S0/0/0)
           -Serial 0/2/0 (Frame-Relay Encap --- BR2)
                                 -DLCI 19 in >> DLCI 18 out (S0/0/0)

Cisco 2821 (BR1)
           -Serial 0/0/0 (Frame-Relay Encapsulation)
                                -S0/0/0.17 P-to-P >> 192.168.254.1/30 >> DLCI 17

Cisco 2821 (BR2)
           -Serial 0/0/0 (Frame-Relay Encapsulation)
                               -S0/0/0.19 P-to-P >> 172.16.32.1/30 >> DLCI 19

Pictures soon...



Posted by at

6 comments:

  1. Mark WeiFebruary 24, 2013 at 4:35 PM

    Hi Ron,

    I'm currently trying to build a very similar environment in using a Cisco 2811 as a FR switch.

    Was curious as to what physical cards are you using for your routers? My pieced together setup includes:
    1 x 2811 (2 x T1 CSU/DSU WIC-1T Cards)
    2 x 2801s (1 x T1 CSU/DSU WIC-1T Cards)
    2 x 2851s (4 x T1 CSU/DSU WIC-1T Cards)
    4 x 2821s (2 x T1 CSU/DSU WIC-1T Cards)

    In trying to configure the T1 cards to cross connect into my 2851 I've found I need special T1 Crossover cables (not Ethernet Crossover cables).

    Have you been using T1 CSU/DSU cards for your serial connection on your 2811 and/or any of the other 2800s?

    Cheers,
    Mark

    ReplyDelete
    Replies
    1. UnknownMarch 20, 2013 at 5:22 PM

      Hello Mark, and all!

      I have been moving to a new home so I have not had a chance to update my blog. Anyway, I use standard WIC-2T cards with Smart Serial (DCE/DTE) cables.

      I have 1 T1 card but I have not used it yet. I plan to probably use them more when I get to the CCNP track since they are more common with T1 technology. I plan to buy some as they are pretty cheap on ebay.

      But yes, the cable is different from a standard CAT5 or 6 ethernet cable. I made the same mistake at work.

      Delete
  2. UnknownMarch 3, 2013 at 11:15 PM

    nice information,please describes all of these with a graphic presentation to more understandable.
    ____________
    cisco2811

    ReplyDelete
    Replies
    1. UnknownMarch 20, 2013 at 5:22 PM

      I will post a Visio drawing for you. Do you just want the frame relay setup or my entire (small) network?

      Regards!

      Delete
  3. Mark WeiMarch 3, 2013 at 11:20 PM

    I actually got the setup to work.

    I did more research and found that I had to make/buy the special T1 Crossovers (different from Ethernet crossover) cables. This allowed me to get physical link light to come up and I was successful in having a back to back connection between my 2821 T1 WIC-DSU cards.

    Even got my 2851 to be a frame-relay switch. :)

    ReplyDelete
    Replies
    1. UnknownMarch 20, 2013 at 5:24 PM

      Cool. I initially used the 2821 for frame relay but I decided to use all 2821s as branch office routers and the 2851 as an HQ router since the specifications were higher.

      Can you post your topology map?

      Delete

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