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Forum Replies

  1. Yesterday I did the same lab, hehe, same results.

    R2#show ip eigrp neighbors
    EIGRP-IPv4 Neighbors for AS(1)
    H   Address                 Interface       Hold Uptime   SRTT   RTO  Q  Seq
                                                (sec)         (ms)       Cnt Num
    0   192.168.1.1             Fa1/0            167 00:17:51   81   486  0  17
    
    R2#
    *Sep 11 19:02:43.279: EIGRP: Received QUERY on FastEthernet1/0 nbr 192.168.1.1
    *Sep 11 19:02:43.279:  AS 1, Flags 0x0:(NULL), Seq 18/0 interfaceQ 0/0 iidbQ un/rely 0/0 peerQ un/rely 0/0
    *Sep 11 19:02:43.283: EIGRP: Enqueuein
    ... Continue reading in our forum

  2. It’s 5 seconds for LAN interfaces and 60 seconds for slow (WAN) interfaces. The holddown timer is 3x the hello timer.

  3. Hi Rene,

    In case of hybrid FR hub and spoke configuration, all with serial interfaces ( R1 is the hub router - with 2 logical sub-interfaces, one point-to-point, and another one multipoint, R2 is a spoke router for the point-to-point connection, R3,R4,R5 are the spokes for the multipoint connection). In this case, R1 point-to-point subif has different timer values (Hello: 5s) than the multipoint subif (Hello: 60s) as the latter is considered to be slower link. However all this hub-and-spoke topology is configured in one EIGRP AS (AS:100). My question is do we n

    ... Continue reading in our forum

  4. Hello Kostas

    This is an excellent question and it reveals some of the nuances of EIGRP.

    When using Ethernet as the layer 2 protocol, holdown and hello timers for EIGRP don’t have to be consistent over the whole AS. Each EIGRP neighbour relationship must have its timers configured correctly, but those can be different from relationship to relationship. However there is one case where timers must be configured the same, and this is the case you describe above.

    This case is when you have multiple routers on a network that form adjacencies. All those routers mus

    ... Continue reading in our forum

  5. Hello Laz,

    Your answer is really helpful and I appreciate your time to respond me.
    Thank you for clarifying my concerns. :slight_smile:

    Kostas

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