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Common Routing Problem with OSPF Forwarding
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Document ID: 13682
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Prerequisites
, l" Y+ [5 M9 ~0 U9 z/ H$ h Requirements
8 l6 L7 t. ^% Z7 A Components Used
/ H K0 T w8 o! h/ g- K% ` Conventions
@7 R( ^* ^# j- u; GDescription of OSPF Forwarding Address
, g, T' z$ t1 b: [3 a/ {" u1 W" QCommon OSPF Routing Problem Related to the Forwarding Address
, M; [$ a% r: { U3 w) p Network Missing from the Routing Table* ]0 u' |3 C! o2 R
Do Not Summarize on the ABR/ G0 ?' p& E" ]5 P8 V" z
Prevent the Subnet from Being Redistributed into OSPF as an External Route
# p4 B6 G4 C+ fRelated Information: ]6 B% e$ r" f2 n0 ? W
Introduction
, p- R9 J3 C# |; p! ~" ~This document describes the concepts and the problem associated with the Open Shortest Path First (OSPF)
* |; d+ e! K, x; D: T& n. L: K, p7 Wforwarding address. Refer to Why Are Some OSPF Routes in the Database but Not the Routing Table? for
* H1 \4 i0 @5 N1 u* _; p4 ~. N ^more information about troubleshooting OSPF.; {# R5 n. D' @& _4 ? i$ x) o
The problem explained in this document is only observable with Cisco IOS® Software releases earlier than6 Y- V+ O* ?- z8 g
12.1(3). The behavior of redistribution has changed in Cisco IOS Software Release 12.1(3) and later. For
1 Y a, i/ k) {) j" Rmore details, refer to Cisco bug ID CSCdp72526 ( registered customers only) . This bug has the list of Cisco IOS
1 I1 _, f: O- j6 ~& z qSoftware releases affected and the fixed versions. Also refer to Redistributing Connected Networks into OSPF
8 b& \( T m/ a2 o$ uwhere the change in Cisco IOS behavior is explained.* _1 }2 J- R+ r3 S% ] Z
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CCIE RS TS1 OSPF R21 上FA地址的详解.rar
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