Configuring MED: Multiple Adjacent Autonomous Systems

By default, a Cisco router ignores MED when the multiple routes to a single NLRI list different neighboring ASNs. This default action makes sense—normally you would not expect two different neighboring ISPs to have chosen to work together to set MEDs. To override this default and consider the MED in all cases, a router needs to configure the bgp always-compare-med BGP subcommand. If used on one router, all routers inside the same AS should also use the bgp always-compare-me..

LDP/TDP Session Establishment

When you start MPLS on the first interface in a router, the TDP/LDP process is started and the Label Information Base (LIB) structure is created. The router also tries to discover other LSRs on the interfaces running MPLS through TDP hello packets. The TDP hello packets are sent as broadcast or multicast UDP packets, making LSR neighbor discovery automatic. The debug tag tdp transport command can monitor the TDP hellos. Example C-4 shows the TDP process startup and Example C-..

CB Shaping to a Peak Rate

Normal 0 7.8 磅 0 2 false false false EN-US ZH-CN X-NONE ..

The Abilities and Limitations of TCP/IP

TCP/IP is a communications protocol that fits in the middle of a larger set of mechanisms. TCP/IP provides the linkage between communicating software applications and a physical network that carries messages sent by computers to other computers or devices. In this regard, TCP/IP complements and extends the capability of a physical network, but can't work without that network. Although TCP/IP does blur across some boundaries, it actually fits between the application software, ..

Creating a Default Route in OSPF

To propagate a default route with OSPF, use the default-information originate configuration command: Router1#configure terminal Enter configuration commands, one per line.  End with CNTL/Z. Router1(config)#ip route 0.0.0.0 0.0.0.0 172.25.1.1 Router1(config)#router ospf 55 Router1(config-router)#default-information originate metric 30 metric-type 1 Router1(config-router)#exit Router1(config)#end Router1# Unlike RIP and EIGRP, you cannot create a default route in OSPF b..