Troubleshooting IP Routing Protocols (CCIE Professional Development Series)
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backbone:IS-IS networks ‚ ‚ ‚ ‚ IS-IS:backbone ‚ ‚ ‚ ‚ ‚ ‚ ‚ ‚ link-state protocols:IS-IS:backbone;ISO CLNS:IS-IS:backbone ‚ Backup Designated Router field ‚ ‚ ‚ ‚ OSPF Hello packets ‚ backup interface command ‚ ‚ ‚ ‚ commands:backup interface ‚ best path ‚ ‚ ‚ ‚ BGP:best path ‚ best route ‚ best-path calculation:BGP-4 ‚ ‚ ‚ ‚ BGP-4:best paths:calculating ‚ ‚ ‚ ‚ ‚ ‚ ‚ ‚ calculating:best paths (BGP-4);ISPs:BGP-4:best path calculation ‚ 2nd ‚ 3rd ‚ 4th ‚ BGP feed ‚ BGP neighbors ‚ BGP peering arrangement ‚ BGP peers ‚ BGP-4:neighbor relationships ‚ ‚ ‚ ‚ protocol specifications:BGP-4:neighbor relationships ‚ ‚ ‚ ‚ ‚ ‚ ‚ ‚ ISPs:BGP:neighbor relationships;neighbor relationships:BGP-4 ‚ 2nd ‚ BGP-4:neighbor relationships:external ‚ ‚ ‚ ‚ protocol specifications:BGP-4:external neighbor relationships ‚ ‚ ‚ ‚ ‚ ‚ ‚ ‚ ISPs:BGP:external neighbor relationships;neighbor relationships:BGP-4:external;external neighbor rel ‚ 2nd ‚ 3rd ‚ BGP-4:neighbor relationships:internal ‚ ‚ ‚ ‚ protocol specifications:BGP-4:internal neighbor relationships ‚ ‚ ‚ ‚ ‚ ‚ ‚ ‚ ISPs:BGP:internal neighbor relationships;neighbor relationships:BGP-4:internal;internal neighbor rel ‚ BGP-4:policy control ‚ ‚ ‚ ‚ ISPs:BGP-4:policy control ‚ ‚ ‚ ‚ ‚ ‚ ‚ ‚ policy control;routing policies:BGP-4 ‚ 2nd ‚ 3rd ‚ BGP-4:policy control:AS_PATH attribute ‚ ‚ ‚ ‚ ISPs:BGP-4:policy control ‚ ‚ ‚ ‚ ‚ ‚ ‚ ‚ policy control (BGP-4):AS_PATH attribute;routing policies:BGP-4:AS_PATH attribute;AS_PATH attribute: ‚ 2nd ‚ 3rd ‚ 4th ‚ BGP-4:policy control:LOCAL_PREF attribute ‚ ‚ ‚ ‚ ISPs:BGP-4:policy control ‚ ‚ ‚ ‚ ‚ ‚ ‚ ‚ policy control (BGP-4):LOCAL_PREF attribute;routing policies:BGP-4:LOCAL_PREF attribute;LOCAL_PREF a ‚ 2nd ‚ 3rd ‚ BGP-4:policy control:MED attribute ‚ ‚ ‚ ‚ ISPs:BGP-4:policy control ‚ ‚ ‚ ‚ ‚ ‚ ‚ ‚ policy control (BGP-4):MED attribute;routing policies:BGP-4:MED attribute;MED attribute:policy contr ‚ 2nd ‚ 3rd ‚ 4th ‚ 5th ‚ BGP-4:policy control:NEXT_HOP attribute ‚ ‚ ‚ ‚ ISPs:BGP-4:policy control ‚ ‚ ‚ ‚ ‚ ‚ ‚ ‚ policy control (BGP-4):NEXT_HOP attribute;routing policies:BGP-4:NEXT_HOP attribute;NEXT_HOP attribu ‚ BGP-4:policy control:ORIGIN attribute ‚ ‚ ‚ ‚ ISPs:BGP-4:policy control ‚ ‚ ‚ ‚ ‚ ‚ ‚ ‚ policy control (BGP-4):ORIGIN attribute;routing policies:BGP-4:ORIGIN attribute;ORIGIN attribute:pol ‚ BGP-4:policy control:route maps ‚ ‚ ‚ ‚ route maps:BGP-4 policy control ‚ ‚ ‚ ‚ ‚ ‚ ‚ ‚ policy control:route maps ‚ 2nd ‚ 3rd ‚ 4th ‚ 5th ‚ BGP-4:policy control:WEIGHT knob ‚ ‚ ‚ ‚ ISPs:BGP-4:policy control ‚ ‚ ‚ ‚ ‚ ‚ ‚ ‚ policy control (BGP-4):WEIGHT knob;routing policies:BGP-4:WEIGHT knob;WEIGHT knob:policy control;kno ‚ 2nd ‚ BGP-4:RFC-1771 ‚ ‚ ‚ ‚ protocol specifications:BGP-4 ‚ ‚ ‚ ‚ ‚ ‚ ‚ ‚ BGP-4:protocol specifications;ISPs:BGP:protocol specifications ‚ BGP-4:route dampening ‚ ‚ ‚ ‚ route dampening ‚ ‚ ‚ ‚ ‚ ‚ ‚ ‚ ISPs:BGP-4:route dampening;flapping routes:dampening ‚ 2nd ‚ 3rd ‚ 4th ‚ BGP:AS-PATH:filtering ‚ ‚ ‚ ‚ filtering:BGP traffic:AS_PATH ‚ ‚ ‚ ‚ ‚ ‚ ‚ ‚ filtering:BGP traffic:AS_PATH;AS_PATH:filtering;attributes (BGP):AS_PATH:filtering ‚ 2nd ‚ BGP:best-path calculation ‚ ‚ ‚ ‚ best-path calculation:BGP ‚ BGP:best-path calculation:selection of lowest MED value ‚ ‚ ‚ ‚ best-path calculation:BGP ‚ ‚ ‚ ‚ ‚ ‚ ‚ ‚ MED:best-path selection;selecting:BGP best-path ‚ 2nd ‚ 3rd ‚ 4th ‚ BGP:best-path calculation:selection of wrong path ‚ ‚ ‚ ‚ best-path calculation:BGP ‚ ‚ ‚ ‚ ‚ ‚ ‚ ‚ RIDs (router IDs):best-path selection;selecting:BGP best-path ‚ 2nd ‚ 3rd ‚ BGP:extended access lists: unfiltered masked routes ‚ ‚ ‚ ‚ extended access lists:BGP filtering:unfiltered masked routes ‚ ‚ ‚ ‚ ‚ ‚ ‚ ‚ filtering:BGP traffic:unfiltered masked routes;access lists:filtering BGP traffic:unfiltered masked ‚ 2nd ‚ 3rd ‚ 4th ‚ 5th ‚ BGP:external neighbor relationships:incorrect IP address assignment ‚ ‚ ‚ ‚ external neighbor relationships:incorrect IP address assignment ‚ ‚ ‚ ‚ ‚ ‚ ‚ ‚ neighbor relationships (BGP):external:incorrect IP address assignment ‚ 2nd ‚ BGP:external neighbor relationships:IP connectivity ‚ ‚ ‚ ‚ external neighbor relationships:IP connectivity ‚ ‚ ‚ ‚ ‚ ‚ ‚ ‚ neighbor relationships:external (BGP):IP connectivity;connectivity:external BGP neighbor relationshi ‚ BGP:external neighbor relationships:Layer 2 problems ‚ ‚ ‚ ‚ external neighbor relationships:Layer 2 problems ‚ ‚ ‚ ‚ ‚ ‚ ‚ ‚ neighbor relationships:external (BGP):Layer 2 problems;Layer 2 (OSI):connectivity between external B ‚ 2nd ‚ 3rd ‚ BGP:inbound traffic flows ‚ ‚ ‚ ‚ inbound BGP traffic flows ‚ ‚ ‚ ‚ ‚ ‚ ‚ ‚ ASes:inbound traffic flows ‚ BGP:inbound traffic flows: underutilized links ‚ ‚ ‚ ‚ inbound BGP traffic flows:underutilized links ‚ ‚ ‚ ‚ ‚ ‚ ‚ ‚ ASes:inbound traffic flows:underutilized links;EBGP:underutilized links between two ASes ‚ 2nd ‚ 3rd ‚ 4th ‚ 5th ‚ BGP:load balancing:dual- homed outbound traffic ‚ ‚ ‚ ‚ outbound BGP traffic:dual-homed:load balancing ‚ ‚ ‚ ‚ ‚ ‚ ‚ ‚ dual-homed outbound traffic:load balancing;load balancing:dual-homed outbound BGP traffic ‚ 2nd ‚ 3rd ‚ 4th ‚ 5th ‚ 6th ‚ BGP:policy routing:outbound IP traffic flows ‚ ‚ ‚ ‚ policy routing (BGP):outbound IP traffic flows ‚ ‚ ‚ ‚ ‚ ‚ ‚ ‚ ASes:outbound IP traffic flows ‚ ‚ ‚ ‚ ‚ policy routing (BGP):outbound IP traffic flows: asymmetrical routing ‚ ‚ ‚ ‚ ‚ ‚ ‚ ‚ ASes:outbound IP traffic flows:asymmetrical routing;outbound traffic flows (BGP):asymmetrical routin ‚ 2nd ‚ 3rd ‚ 4th ‚ 5th ‚ ‚ ‚ ‚ ‚ policy routing (BGP):outbound IP traffic flows:dual-homed connections ‚ ‚ ‚ ‚ ‚ ‚ ‚ ‚ ASes:outbound IP traffic flows:dual-homed connections;outbound traffic flows (BGP):dual-homing;dual- ‚ 2nd ‚ 3rd ‚ 4th ‚ ‚ ‚ ‚ ‚ policy routing (BGP):outbound IP traffic flows:reachability ‚ ‚ ‚ ‚ ‚ ‚ ‚ ‚ ASes:outbound IP traffic flows:reachability;outbound traffic flows (BGP):reachability;reachability:o ‚ 2nd ‚ 3rd ‚ ‚ ‚ ‚ ‚ policy routing (BGP):outbound IP traffic flows:single exit point ‚ ‚ ‚ ‚ ‚ ‚ ‚ ‚ ASes:outbound IP traffic flows:single exit point;outbound traffic flows (BGP):single exit point from ‚ 2nd ‚ 3rd ‚ 4th ‚ 5th ‚ BGP:route reflection ‚ ‚ ‚ ‚ route reflection ‚ BGP:route reflection: client-to-client reflection ‚ ‚ ‚ ‚ route reflection:client-to-client ‚ ‚ ‚ ‚ ‚ ‚ ‚ ‚ client-to-client reflection;IBGP neighbor relationships:client-to-client reflection;neighbor relatio ‚ 2nd ‚ BGP:route reflection:misconfiguration ‚ ‚ ‚ ‚ route reflection:misconfigured IBGP neighbor ‚ ‚ ‚ ‚ ‚ ‚ ‚ ‚ IBGP neighbor relationships:misconfiguration;neighbor relationships:internal:misconfiguration;miscon ‚ 2nd ‚ BGP:route reflection:peer groups ‚ ‚ ‚ ‚ route reflection:peer groups ‚ ‚ ‚ ‚ ‚ ‚ ‚ ‚ convergence:BGP networks:peer groups;improving:BGP network convergence;peer groups:improving BGP con ‚ 2nd ‚ BGP:routing table: uninstalled EBGP-learned routes ‚ ‚ ‚ ‚ routing tables:BGP:uninstalled EBGP-learned routes ‚ ‚ ‚ ‚ ‚ ‚ ‚ ‚ EBGP:uninstalled routes:dampened BGP routes;uninstalled EBGP routes:dampening ‚ 2nd ‚ 3rd ‚ ‚ ‚ ‚ ‚ ‚ ‚ ‚ ‚ EBGP:uninstalled routes:infinite MED value;uninstalled EBGP routes:infinite MED value;MED:infinite v ‚ ‚ ‚ ‚ ‚ ‚ ‚ ‚ ‚ EBGP:uninstalled routes:unreachable multihop EBGP next hop;uninstalled EBGP routes:unreachale multih ‚ 2nd ‚ 3rd ‚ ‚ ‚ ‚ ‚ ‚ ‚ ‚ ‚ EBGP:uninstalled routes;uninstalled EBGP routes ‚ BGP:routing table:uninstalled IBGP-learned routes ‚ ‚ ‚ ‚ routing tables:BGP:uninstalled IBGP-learned routes ‚ ‚ ‚ ‚ ‚ ‚ ‚ ‚ IBGP:uninstalled routes:unreachable next-hops;uninstalled IBGP routes:unreachable next-hops;reachabi ‚ 2nd ‚ 3rd ‚ 4th ‚ 5th ‚ ‚ ‚ ‚ ‚ ‚ ‚ ‚ ‚ IBGP:uninstalled routes;uninstalled IBGP routes:synchronization ‚ 2nd ‚ 3rd ‚ 4th ‚ BGP:standard access lists:unfiltered subnets ‚ ‚ ‚ ‚ standard access lists:BGP filtering:unfiltered subnets ‚ ‚ ‚ ‚ ‚ ‚ ‚ ‚ filtering:BGP traffic:unfiltered subnets;access lists:filtering BGP traffic:unfiltered subnets ‚ 2nd ‚ 3rd ‚ Bit B field (router LSAs) ‚ Bit E field (external LSAs) ‚ Bit E field (router LSAs) ‚ Bit V field (router LSAs) ‚ boundaries ‚ ‚ ‚ ‚ EIGRP queries ‚ broadcast addresses ‚ ‚ ‚ ‚ IP addressing:broadcast addresses ‚ broadcast links:IS-IS ‚ ‚ ‚ ‚ ISO CLNS:IS-IS:broadcast links ‚ ‚ ‚ ‚ ‚ ‚ ‚ ‚ IS-IS:broadcast links;link-state protocols:IS-IS:broadcast links ‚
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