Customer has a core of 6500s running eigrp. Between two of the routers, they have configured ospf area 0. That is, there is one gigbit link between the routers enabled for eigrp, but not ospf.
There is other "routers" connected to these switches running ospf - all in area 0.
The two 6500s is redistributing ospf and eigrp (both directions) using tags for not generating routing loops. But what about LSAs? Is there any "danger" in such a config? Should the single gigabit between the routers also be enabled for ospf?
Not sure I understand the design (all routers run ospf except for one eigrp link?), but what function does the EIGRP serve? Can OSPF do it, if yes I would remove eigrp and run ospf (not a big fan of redistribution on production environments when not necessary) everywhere. The way it is set up now won't cause loops as long as your filters are in place, but moving to a homogenous environment may save you time troubleshooting in the future.
[toc:faq]The ProblemOn traditional switches whenever we have a trunk
interface we use the VLAN tag to demultiplex the VLANs. The switch needs
to determine which MAC Address table to look in for a forwarding
decision. To do this we require the switch to do...
[toc:faq]Introduction:Netdr is a tool available on a RSP720, Sup720 or
Sup32 that allows one to capture packets on the RP or SP inband. The
netdr command can be used to capture both Tx and Rx packets in the
software switching path. This is not a substitut...
IntroductionOSPF, being a link-state protocol, allows for every router
in the network to know of every link and OSPF speaker in the entire
network. From this picture each router independently runs the Shortest
Path First (SPF) algorithm to determine the b...