Propagating LSPs on a Point-to-Point Interface
A point-to-point link does not need to ensure that multiple systems have synchronized databases. With only one other router with which to work, some reliance is given to the router's capability to determine the need to update so that bandwidth can be optimized. The following list describes the point-to-point flooding process: 1. When an adjacency is established, both sides send a complete sequence number packet (CSNP) with a compressed version of their link-state datab..
Overloading NAT with Port Address Translation
As mentioned earlier, NAT is one of the key features that helped to reduce the speed at which the IPv4 address space was being depleted. NAT overloading, also known as Port Address Translation (PAT), is the NAT feature that actually provides the significant savings of IP addresses. The key to understanding how PAT works is to consider the following: From a server’s perspective, there is no significant difference between 100 different TCP connections, each from a different h..
WFQ requires very little configuration—in fact, it is on by default on E1-and-slower serial links. So, with default settings, WFQ literally requires no configuration commands. Table 15-4 lists the commands related to WFQ. Of particular importance, note that the fair-queue command allows setting of the CDT, number of queues, and number of RSVP queues, and the hold-queue command sets the number of packets allowed in all queues on the interface. Table 15-4 Command Reference ..
SNMPv3 supports three modes of operation, each with different security features. The following configuration commands enable SNMPv3 with no authentication and no encryption services (noAuthNoPriv): Router#configure terminal Enter configuration commands, one per line. End with CNTL/Z. Router(config)#snmp-server view TESTV3 mib-2 include Router(config)#snmp-server group NOTSAFE v3 noauth read TESTV3 Router(config)#snmp-server user WEAK NOTSAFE v3 Router(config)#end Router..
To use Bidirectional PIM, you must configure all of the routers in your network to support this method of building multicast forwarding trees. The RP configuration looks like this: Router-RP1#configure terminal Enter configuration commands, one per line. End with CNTL/Z. Router-RP1(config)#ip multicast-routing Router-RP1(config)#ip pim bidir-enable Router-RP1(config)#ip pim rp-address 192.168.12.1 bidir Router-RP1(config)#ip pim rp-candidate Loopback0 group-list ..
