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OSPF summary address only to advertise

This thread has been viewed 6 times

  • 1.  OSPF summary address only to advertise

    Posted Aug 18, 2019 01:54 PM
    Hi,

    I have some 8320 and 5400 switches peering to our WAN provider ... I want to start distributing OSPF over this.

    To keep the routing table as small as possible for these links over the WAN, how can I set a summary address on the relevant interface?

    So effectively all the other sites just get advertised a summary address in OSPF for each other site?

    Thanks


  • 2.  RE: OSPF summary address only to advertise

    MVP GURU
    Posted Aug 19, 2019 03:46 AM

    for 8320, do you have look area X range XXX command ?

     

    ArubaOS-CX-Switch(config-ospf-2)# area 0
    default-metric  Configure cost for the default route used for a stub or NSSA area
    nssa            Configure OSPF area as NSSA
    range           Summarize routes matching address/mask on border routers only
    stub            Configure OSPF area as stub
    virtual-link    Configure a virtual link<cr>


  • 3.  RE: OSPF summary address only to advertise

    Posted Aug 19, 2019 01:06 PM
    Thanks - so the area command is where you set the range? So you essentially assign a summary address to each area you make?

    Thanks


  • 4.  RE: OSPF summary address only to advertise
    Best Answer

    MVP GURU
    Posted Aug 20, 2019 10:57 AM

    Yes