Month: February 2012

OSPF – Type 1 LSA vs Type 5 LSA (passive vs redistribute)

In my OSPF database blog entry here: http://mellowd.co.uk/ccie/?p=1999 – I mentioned that Type3, Type5 and Type7 LSAs are not very memory efficient. Each and every prefix needs a separate LSA, while with a Type1, multiple prefixes can be advertised. So it stands to reason that perhaps Type1 are always better? Anything that reduces memory load…

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CCIE R&S IGP notes (RIP, EIGRP & OSPF)

RIPv2: ip rip triggered is an interface command to only send rip updates when there is a change. Only works on P2P links passive interface in RIP only stops the router sending updates out, it’ll still receive updates in from neighbours. If you have configured a static neighbour it’ll send unicast updates even if passive-interface…

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