draft-ietf-idr-bgp4-09.txt | draft-ietf-idr-bgp4-10.txt | |||
---|---|---|---|---|
Network Working Group Y. Rekhter | Network Working Group Y. Rekhter | |||
INTERNET DRAFT cisco Systems | INTERNET DRAFT cisco Systems | |||
T. Li | T. Li | |||
Juniper Networks | Procket Networks, Inc. | |||
Editors | Editors | |||
A Border Gateway Protocol 4 (BGP-4) | A Border Gateway Protocol 4 (BGP-4) | |||
<draft-ietf-idr-bgp4-09.txt> | <draft-ietf-idr-bgp4-10.txt> | |||
Status of this Memo | Status of this Memo | |||
This document is an Internet-Draft and is in full conformance with | This document is an Internet-Draft and is in full conformance with | |||
all provisions of Section 10 of RFC2026. | all provisions of Section 10 of RFC2026. | |||
Internet-Drafts are working documents of the Internet Engineering | Internet-Drafts are working documents of the Internet Engineering | |||
Task Force (IETF), its areas, and its working groups. Note that | Task Force (IETF), its areas, and its working groups. Note that | |||
other groups may also distribute working documents as Internet- | other groups may also distribute working documents as Internet- | |||
Drafts. | Drafts. | |||
skipping to change at page 40, line 36 | skipping to change at page 40, line 36 | |||
a) Remove from consideration routes with less-preferred | a) Remove from consideration routes with less-preferred | |||
MULTI_EXIT_DISC attributes. MULTI_EXIT_DISC is only comparable | MULTI_EXIT_DISC attributes. MULTI_EXIT_DISC is only comparable | |||
between routes learned from the same neighboring AS. Routes which | between routes learned from the same neighboring AS. Routes which | |||
do not have the MULTI_EXIT_DISC attribute are considered to have | do not have the MULTI_EXIT_DISC attribute are considered to have | |||
the highest possible MULTI_EXIT_DISC value. | the highest possible MULTI_EXIT_DISC value. | |||
This is also described in the following procedure: | This is also described in the following procedure: | |||
for m = all routes still under consideration | for m = all routes still under consideration | |||
for n = all routes still under consideration | for n = all routes still under consideration | |||
if (neighborAS(m) == neighborAS(n)) and (MED(n) < | if (neighborAS(m) == neighborAS(n)) and (MED(n) < MED(m)) | |||
MED(m)) | ||||
remove route m from consideration | remove route m from consideration | |||
In the pseudo-code above, MED(n) is a function which returns the | In the pseudo-code above, MED(n) is a function which returns the | |||
value of route n's MULTI_EXIT_DISC attribute. If route n has no | value of route n's MULTI_EXIT_DISC attribute. If route n has no | |||
MULTI_EXIT_DISC attribute, the function returns the highest | MULTI_EXIT_DISC attribute, the function returns the highest | |||
possible MULTI_EXIT_DISC value, i.e. 2^32-1. | possible MULTI_EXIT_DISC value, i.e. 2^32-1. | |||
Similarly, neighborAS(n) is a function which returns the neighbor | Similarly, neighborAS(n) is a function which returns the neighbor | |||
AS from which the route was received. | AS from which the route was received. | |||
skipping to change at page 60, line 10 | skipping to change at page 60, line 10 | |||
Editors' Addresses | Editors' Addresses | |||
Yakov Rekhter | Yakov Rekhter | |||
cisco Systems, Inc. | cisco Systems, Inc. | |||
170 W. Tasman Dr. | 170 W. Tasman Dr. | |||
San Jose, CA 95134 | San Jose, CA 95134 | |||
email: yakov@cisco.com | email: yakov@cisco.com | |||
Tony Li | Tony Li | |||
Juniper Networks, Inc. | Procket Networks | |||
385 Ravendale Dr. | 3910 Freedom Circle, Ste. 102A | |||
Mountain View, CA 94043 | Santa Clara CA 95054 | |||
email: tli@juniper.net | Email: tli@procket.com | |||
End of changes. | ||||
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