I've seen OSPF in MPLS configurations with smaller ISPs. I don't know how common it is though.
Sent from my HTC Tilt™ 2, a Windows® phone from AT&T ________________________________ From: Brian Desmond <[email protected]> Sent: Thursday, April 21, 2011 3:36 PM To: NT System Admin Issues <[email protected]> Subject: RE: OSPF on Cisco Catalyst 3750 switch? The bigger question to me is why you’re running OSPF with your ISP? OSPF is meant to be an internal routing protocol where-as BGP is an external facing one. What’s your ISP/WAN connectivity look like in this refresh? Thanks, Brian Desmond [email protected]<mailto:[email protected]> c – 312.731.3132 From: Michael B. Smith [mailto:[email protected]] Sent: Thursday, April 21, 2011 1:56 PM To: NT System Admin Issues Subject: RE: OSPF on Cisco Catalyst 3750 switch? You have 3750’s at your network edge? That, while not impossible, seems unlikely. But the real question is whether you are running an EMI image or an SMI image. EMI is required for OSPF. Take a gander here: http://www.cisco.com/en/US/products/hw/switches/ps5023/products_configuration_example09186a00801cc828.shtml Regards, Michael B. Smith Consultant and Exchange MVP http://TheEssentialExchange.com From: [email protected] [mailto:[email protected]] Sent: Thursday, April 21, 2011 2:48 PM To: NT System Admin Issues Subject: OSPF on Cisco Catalyst 3750 switch? Greetings! Our VoIP system was set up with a stack of Cisco Catalyst 3750 switches handling the VLAN-ing. It is also the default gateway for both VLANs. We have a major ISP upgrade coming. We've been told it will be necessary to configure Open Shortest Path First (OSPF) on our gateway... At the CLI, the command "show ip ospf neighbor" does not work... it returns "impropre input at the "^". The "^" points to the "o" on ospf. Running the Cisco Network Assistant, Config > Routing > Protocols, then opening the "Help" for that window and searching for "OSPF", it says simply click the "OBSF" tab. No such tab! I have only "Static" and "RIP". (This is even though the "Help" claims the switch stack is a Layer 3 switch and supports OSPF.) (FWIW, I've tried connecting in both Read Only and in Read/Write modes to see if that gives me the OSPF tab - it does not.) I'm searching the Cisco site first, and will continue on as I can find via Google. FWIW, Network Assistant is V5.5. Might a newer version of Network Assistant give me said OSPF tab? Could it be that not all 3750s can run OSPF? Thanks... -- richard ~ Finally, powerful endpoint security that ISN'T a resource hog! ~ ~ <http://www.sunbeltsoftware.com/Business/VIPRE-Enterprise/> ~ --- To manage subscriptions click here: http://lyris.sunbelt-software.com/read/my_forums/ or send an email to [email protected]<mailto:[email protected]> with the body: unsubscribe ntsysadmin ~ Finally, powerful endpoint security that ISN'T a resource hog! ~ ~ <http://www.sunbeltsoftware.com/Business/VIPRE-Enterprise/> ~ --- To manage subscriptions click here: http://lyris.sunbelt-software.com/read/my_forums/ or send an email to [email protected]<mailto:[email protected]> with the body: unsubscribe ntsysadmin ~ Finally, powerful endpoint security that ISN'T a resource hog! ~ ~ <http://www.sunbeltsoftware.com/Business/VIPRE-Enterprise/> ~ --- To manage subscriptions click here: http://lyris.sunbelt-software.com/read/my_forums/ or send an email to [email protected]<mailto:[email protected]> with the body: unsubscribe ntsysadmin ~ Finally, powerful endpoint security that ISN'T a resource hog! ~ ~ <http://www.sunbeltsoftware.com/Business/VIPRE-Enterprise/> ~ --- To manage subscriptions click here: http://lyris.sunbelt-software.com/read/my_forums/ or send an email to [email protected] with the body: unsubscribe ntsysadmin
