BGP 4 Command and Configuration Handbook by William R. Parkhurst Ph.D. CCIE®

By William R. Parkhurst Ph.D. CCIE®

The accomplished, hands-on advisor to all Cisco IOS(r) software program BGP-4 instructions

  • The entire BGP-4 command reference
  • invaluable for community designers, engineers, and designers
  • Provides configuration, troubleshooting, and verification eventualities for each attainable BGP-4 command supported by way of Cisco IOS software program that may be applied on a minimal variety of routers
  • Groups BGP-4 instructions by means of region of implementation path aggregation, auto-summary, direction filtering, and direction commercial, simply to identify a couple of
  • Provides transparent and concise remark at the preliminary unencumber, objective, syntax, and utilization of every BGP-4 command
  • Offers very good CCIE certification coaching from one of many CCIE software Managers
  • Includes supplementary info on commonplace expressions, path map common sense, and RFC 1771, A Border Gateway Protocol four (BGP-4)

Cisco BGP-4 Command and Configuration Handbook is an exhaustive functional connection with the instructions contained inside BGP-4. for every command/subcommand, writer invoice Parkhurst explains the meant use or functionality and the way to correctly configure it. Then he offers eventualities to illustrate each aspect of the command and its use, besides applicable show and debug instructions. throughout the dialogue of performance and the scenario-based configuration examples, Cisco BGP-4 Command and Configuration Handbook can assist you achieve an intensive knowing of the sensible part of BGP-4.

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Additional info for BGP 4 Command and Configuration Handbook

Sample text

252 ! 1 route-map setas no auto-summary ! 0/24 with a metric or MED of 100.

12. Prefer the path received from the router with the lowest router ID. BGP normally does not compare MED values for routes from different autonomous systems. This command allows for the comparison of MED values for routes from different autonomous systems. 0/24 from Routers A and C. AS 4 is being simulated using loopbacks, a static route, and route maps. Figure 3-1. 255 ! 0 ! 1 route-map setas out no auto-summary ! 0 ! 252 clockrate 64000 ! 255 ! 252 ! 1 route-map setas no auto-summary ! 0/24 with a metric or MED of 100.

0 ! 0 ! 0 ! 1 remote-as 1 ! Four loopbacks have been created on Router B to simulate the locally sourced routes that will be aggregated. A BGP router can advertise an aggregate only if at least one specific route of the aggregate is in the BGP table. The BGP network commands are necessary on Router B in order to place more-specific routes of the aggregate into the BGP table. 1 Status codes: s suppressed, d damped, h history, * valid, > best, i - internal Origin codes: i - IGP, e - EGP, ? 1 Status codes: s suppressed, d damped, h history, * valid, > best, i - internal Origin codes: i - IGP, e - EGP, ?

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