Re: [c-nsp] Nexus 5k - retrieve forwarding table using SNMP

Yesterday someone asked me how to retrieve the L2 forwarding tables using SNMP on a Nexus 5k. I thought it'd support one of the regular bridging MIBs, perhaps with community/vlan based indexing. However none of the methods I know of succeeded. For the archives: got a response through a

[c-nsp] Nexus 5k - retrieve forwarding table using SNMP

Hi, Yesterday someone asked me how to retrieve the L2 forwarding tables using SNMP on a Nexus 5k. I thought it'd support one of the regular bridging MIBs, perhaps with community/vlan based indexing. However none of the methods I know of succeeded. Does anyone know whether Nexus 5k supports this?

Re: [c-nsp] Network mapping...again

We're looking for a dynamic network mapping tool that does not require a large amount of hand-holding and manpower to manage. I don't care if this is a free or paid product. Ideally, I'd like something that autodiscovers the network including L2 and L3 devices, then intelligently maps them. I

Re: [c-nsp] NX-OS - Fabric Path

Hey, Is it just me or did others also receive a duplicate of the message below? Not only this one, but also others that had mr LTD as recipient and the list in CC... The duplicate comes later and has several Cisco hops in the path, including a couple of Ironport devices. If it's not just me,

Re: [c-nsp] Cisco 6509 reboots on its own... again...

Hi, == Are you implying that a slight temperature raise of 3 degrees was enough to provoque the dilation of the line cards inside the chassis ?!? Hmm Curious, I noticed a slight increase of our DC's temp between last saturday night and sunday morning for a few hours (approx 10h) :

Re: [c-nsp] MACFLAP Message

Bill, In addition to Paul's comments: if the main reason for your current setup is redundancy (and not capacity), you can try using a different bonding mode on the server. If you use bonding mode 1 (active-backup), only one of the links is used for traffic. In bonding mode 1, there are two ways

Re: [c-nsp] Disabling PVST+ in mixed vendor network

By the way, the first time this happened it wasn't following a reload or crash of the Cat6k. If I remember correctly, it coincided with someone connecting a Cisco 3020 blade switch, which we expected to be the cause. I think that incident led to us blocking 01000c-cd wherever we can.

Re: [c-nsp] Disabling PVST+ in mixed vendor network

Ross, Thanks. The first one is already in our config; we were thinking about configuring no spanning-tree vlan 1-4095 in a maintenance window. I hope that won't break our single MST instance but does kill off all PVST+ stuff. Make sure you are running SXF or newer. Previous versions of

[c-nsp] Disabling PVST+ in mixed vendor network

Hi, Maybe this issue is more of a campus nature than NSP related... but I think this list reaches more knowledgeable people :) We're running a mixed vendor network: a couple of Cat6k switches (Sup720-3B) at the core for L3 (internal routing, BGP) and some L2 switching on campus-wide VLANs, and a

Re: [c-nsp] Disabling PVST+ in mixed vendor network

Hi Tony, Thanks for the suggestion. We already do that on all access ports on the HP switches that support it. However, on the trunks between HP and Cisco we have to run MST or RSTP for link redundancy. I want to keep RSTP or MST on those links, but disable PVST+. Regards, Jeroen van Ingen

Re: [c-nsp] Disabling PVST+ in mixed vendor network

Roman, Thanks for the suggestion. We already do that on all access ports on the HP switches that support it. However, on the trunks between HP and Cisco we have to run MST or RSTP for link redundancy. I want to keep RSTP or MST on those links, but disable PVST+. You can try both commands

Re: [c-nsp] SNMP descrepancy

Actually, the 'pub...@643' community he has there gives the table for VLAN 643. True, he's using community based indexing, so it's related to VLAN 643. But Phil is correct about polling the wrong OID: TS is looking at BRIDGE-MIB::dot1dTpFdbAddress, not ipNetToMedia. And I've seen that sort

Re: [c-nsp] Cisco 6500 experiencing %CPU_MONITOR-SP-6-NOT_HEARD

Hi Yousef, Just for the record, I will post this in case some guys out there have the same problem some day. Last friday, one of my core routers, a Cisco 6509 with two SUP720-3BXL modules running s72033-advipservicesk9_wan-mz.122-33.SXH2a, crashed and restarted out of the blue.

Re: [c-nsp] Cisco 6500 experiencing %CPU_MONITOR-SP-6-NOT_HEARD

Hi Youssef, Most relevant bug ID in my archive seems to be CSCsi86691, but I'm not sure if that was the one. The description doesn't exactly match our case. We're running basic BGP with a couple of peers, but only limited routes because our SUPs don't have enough TCAM space for a full table.

Re: [c-nsp] FlexOptic

Hi, Anybody have any experience with FlexOptic? Their website seems a little crazy: http://www.flexoptix.net But they claim to have an SFP/GBIC programmer, plus tunable optics, which is what interests me. We just decided to order the starter kit. If the first tests with the included 1G SX

Re: [c-nsp] Tunnel*** temporarily disabled due to recursive routing

Pavel, Thanks, you made my day! It's the same action plan that I got the last times we opened a case with Cisco ;-) Regards, Jeroen van Ingen ICT Service Centre University of Twente, P.O.Box 217, 7500 AE Enschede, The Netherlands Original Message From: