Re: What's the point of this?

From: Jim Nguyen (nhatquang@thiennam.org)
Date: Sat Apr 16 2005 - 00:28:32 GMT-3


Since Policy Routing takes higher priority and the router will bypass its
routing table when it forwards these matched packets, if there's no
valid default next-hop, all these packets are simply droped.

do I miss something here?

Jim.

----- Original Message -----
  From: ccie2be
  To: Group Study
  Sent: Friday, April 15, 2005 11:53 PM
  Subject: What's the point of this?

  Hi guys,

  That prior question about conditional redist static got me thinking about
  the verify-availability command.

  In the Command Reference I found another command which also uses the
  verify-availability.

  set ip default next-hop x.x.x.x
  set ip default next-hop verify-availability

  What's the point of this?

  Just think about this. If a certain next-hop is the default next-hop that
  means this next-hop should be used if there's no other choice.

  But, if there's no other choice, what happens if this default next-hop is
  NOT available?

  Doesn't this seem to be a contradiction?

  Can someone provide an example where this command should be used and what
  happens if the default next-hop is NOT available?

  TIA, Tim

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