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C3508G-XL with LX/LH GBIC Module ?
We have a Catalyst 3508G-XL with some GBIC FiberOptic modules http://www.cisco.com/en/US/products/hw/switches/ps637/products_data_sheet09186a00800925c7.html Tried to connect to provider switch on another floor, to their LX/LH FO Interface. Problem is, it didn't connect. Troubleshooting: 1... -
Why Router 3845 BGP won't Route ?
Sorry for the late update. We found the problem and fixed it. The problem came from the combination of "network", "access-list/distribute-list", and "ip route". I wasn't giving out the complete picture because I didn't think it would matter, but it is. Here is a summary of what happened... -
Why Router 3845 BGP won't Route ?
It's a nice feature, but did not fit to my need. For the conditional advertising to works, Router B has to match 'something' from either Router A or C, and then it will advertise accordingly. However, there is nothing in particular from Router A and C that can be used for this trigger. Router B... -
Why Router 3845 BGP won't Route ?
Ah! That's one possible explanation. I'm sorry that I won't be able to give you the sh ip bgp neighbor from all. The above scenario is a simplified story. The full story is, Router A belongs to Internet Access Provider A, while Router C belongs to Internet Access Provider C. That's two different... -
Why Router 3845 BGP won't Route ?
The actual configs for all routers are just too much, and most are not related to the BGP. (i.e., simple IP ROUTE on all three routers will work). So, I summarized the BGP part to simplify the situation. Router A: router bgp 1 bgp router-id 1 network 1.2.3.4 mask 255.255.255.0 neighbor B... -
Why Router 3845 BGP won't Route ?
Let's say, ... Router A, AS number 1 Router B, AS number 2 Router C, AS number 3 The connection between them is: A - B - C B has 4 networks attached to it: a.b.c.d, e.f.g.h, m.n.o.p, and q.r.s.t networks. I want to have BGP pairing between B to A, and B to C. However, I want only a.b.c.d and... -
VLAN database disappeared. Why?
Ah, I missed this one. Need to update the Operating Procedure to make sure that all newer Switches will be VTP Transparent from now on, to avoid future problems. However (fortunately?) after I checked the docs, all Cisco Catalyst Express 500 series switches support only VTP transparent mode... -
VLAN database disappeared. Why?
Recently I got 'bitten' during a supposedly common configuration/setup with our Cisco Catalyst C2950. We fixed the problem but did not know what's going on, so we don't know how to avoid it in the future. Background Story: Cisco Catalyst C2950 running with some VLANs already set, VTP as Server...
