QOS Class class-default need “fair-queue” if “bandwidth” was not specified. When using “ip rsvp bandwidth” on a sub-interfaces, it is also required to be configured on the main interface. When using multiple…
Category: CCIE R&S
Routing and Switching
R&S Quick Notes – Multicast & IPv6
Multicast BSR is also commonly referred to as PIMv2. Pay special attention to when using Frame-Relay non-broadcast types. Multicast will not work. Tunnels might be needed. BSR – when multiple c-RP announces…
R&S Quick Notes – BGP
BGP When using Communities, don’t forget “neighbor send-community” Know your attributes and the direction which applied, when to used what. “aggregate address” needs a more specific prefix in the BGP table for…
CCIE R&S Core Knowledge Question(11)
1. When configuring OSPF Fast Hello Packets, does the hello multiplier need to match on the entire segment? Highlight for answer: Not as long as at least one hello packet is sent…
R&S Quick Notes – IGP’s
RIP Know your filters: Offset-list, Distribute-lists, distance command. With filters read carefully: “between 25 & 45″ or “from 25 to 45″. Know your prefix-lists or alternatively using ACL’s instead. “passive interface” command,…
R&S Quick Notes – Frame-Relay/PPP
Frame-Relay DHCP on a frame interface : “frame-relay interface-dlci 555 protocol ip 166.166.166.2″ When asked to disable INARP, be sure to do so on physical interfaces any multipoint sub-interfaces. If you see…
CCIE R&S Core Knowledge Question(10)
1. R1#show frame pvc interface serial 1/0 PVC Statistics for interface Serial1/0 (Frame Relay DTE) Active Inactive Deleted Static Local 1 0 0 0 Switched 0 0 0 0 Unused 0 0 …
R&S Quick Notes – Switching
With the insane amount of theory to go through before the big day comes, it is only normal for a couple of items to get lost in the masses. On top of…
CCIE R&S Core Knowledge Question(9)
1. SPF is scheduled to calculate the Shortest Path Tree when…. Highlight for answer: there is a change in the topology. 2. Which Cisco proprietary feature optimizes the maximum-age timer and tries…