The drawback of confederations is that migration from a nonconfederation to a confederation design requires major reconfiguration of the routers and a major change in the logical topology. In addition, routing through a confederation might not take an optimal path without manually setting BGP policies. Figure 9-10 illustrates this issue. Figure 9-10. AS Confederation Internal and External Routing Confederation 100 is composed of three sub-ASs: 65010, 65020, and 65030...
The intent of CB Marking is to simplify the work required of other QoS tools by marking packets of the same class with the same QoS marking. For other QoS tools to take advantage of those markings, packets should generally be marked as close to the ingress point of the packet as possible. However,the earliest possible point may not be a trusted device. For instance, in Figure 14-5 (the figure upon which Examples 14-3 and 14-4 are based), Server1 could set its own DSCP and eve..
Sending Syslog Messages As SNMP Traps and Informs
You can configure the router to forward syslog messages to your network management server as SNMP traps instead of syslog packets with the following configuration commands: Router#configure terminal Enter configuration commands, one per line. End with CNTL/Z. Router(config)#logging history informational Router(config)#snmp-server enable traps syslog Router(config)#snmp-server host 172.25.1.1 ORATRAP syslog Router(config)#end Router# To forward syslog messages as SNMP ..
Enabling Secure HTTP (HTTPS) Access to a Router
The Secure HTTP feature provides you with a secure and encrypted method to access the router via a web browser using Secure Sockets Layer and Transport Layer Security. This prevents HTTP sessions from being intercepted or attacked. By default, the router creates a self-signed digital certificate that is required for secure access. The router adds the digital certificate to its configuration: Router2#show running-config | section crypto crypto pki trustpoint TP-self-signed-261..
Verifying Adaptive Frame Relay Traffic Shaping for Interface Congestion
In Example 9-1, the frame-relay adaptive-shaping interface-congestion 10 map-class configuration command is configured under the Frame Relay map class named FRTS on R2. The map class FRTS is attached to switched DLCI 200 under interface serial3/1. The queue depth is chosen to be 10 packets. The show frame-relay pvc command can be used to verify that Adaptive Frame Relay Traffic Shaping for Interface Congestion is enabled for the DLCI. This is shown in Example 9-2. Example 9..
