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Forum Replies

  1. Hi Rene,

    Why you enable the directly connected check again when you increase the TTL ?


  2. By default the TTL for eBGP is 1. If you want to get around this then you can disable "disable-connected-check" or you can increase the ebgp multihop. Both options will work and it's one of the two that you should use.

    To demonstrate multihop, I enabled the disable-connected-check again. Otherwise there would be no point demonstrating it :slight_smile:

  3. thanks Rene I understood that we have tow options to use, but in the first option they will not become neighbor even though “disable-connected-check” since by default the TTL for eBGP is 1 so finally we need to increase the TTL if we use the first option ? right ?

  4. Venus,
    In this situation, you can do two things:

    1. (config-router)#neighbor ebgp-multihop 255

    2. Run a trace route from your router to the neighbor. Take the hop count from that. I usually pad it out by about three.

    Method #2 is the more desirable one, fyi.

  5. Hi Palani,

    Cisco IOS routers use CEF (Cisco Express Forwarding) for the forwarding of packets.

    The default is "per destination" load balancing but you can change it per interface. For example:

    R1(config)#interface GigabitEthernet 0/1
    R1(config-if)#ip load-sharing per-packet

    Routing protocols are used to learn different routes, CEF is used for the forwarding of traffic. If you change the load sharing type then it will apply to all traffic.


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