< draft-bryant-ipfrr-tunnels-01.txt   draft-bryant-ipfrr-tunnels-02.txt >
Network Working Group S. Bryant Network Working Group S. Bryant
Internet Draft C. Filsfils Internet Draft C. Filsfils
Expiration Date: Apr 2005 S. Previdi Expiration Date: Oct 2005 S. Previdi
M. Shand M. Shand
Cisco Systems Cisco Systems
Oct 2004 Apr 2005
IP Fast Reroute using tunnels IP Fast Reroute using tunnels
draft-bryant-ipfrr-tunnels-01.txt draft-bryant-ipfrr-tunnels-02.txt
Status of this Memo Status of this Memo
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Abstract Abstract
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4.6.3. A LAN between E and its neighbors........................20 4.6.3. A LAN between E and its neighbors........................20
4.6.4. The LAN is a Transit Subnet..............................21 4.6.4. The LAN is a Transit Subnet..............................21
5. Failure Detection and Repair Path Activation.....................21 5. Failure Detection and Repair Path Activation.....................21
5.1. Failure Detection............................................21 5.1. Failure Detection............................................21
5.2. Repair Path Activation.......................................21 5.2. Repair Path Activation.......................................21
5.3. Node Failure Detection Mechanism.............................21 5.3. Node Failure Detection Mechanism.............................21
6. Loop Free Transition.............................................22 6. Loop Free Transition.............................................22
7. IPFRR Capability.................................................22 7. IPFRR Capability.................................................22
8. Enhancements to routing protocols................................23 8. Enhancements to routing protocols................................23
9. IANA considerations..............................................23 9. IANA considerations..............................................23
10. Security Considerations.........................................23 10. Security Considerations...............Error! Bookmark not defined.
Terminology Terminology
This draft uses the terms defined in [FRMWK]. This section defines This draft uses the terms defined in [FRMWK]. This section defines
additional words, acronyms, and actions used in this draft. additional words, acronyms, and actions used in this draft.
Directed The ability of the repairing router (S) to Directed The ability of the repairing router (S) to
forwarding specify the next hop (G) on exit from a forwarding specify the next hop (G) on exit from a
tunnel end-point (F) tunnel end-point (F)
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o The ability to signal transition completion status to o The ability to signal transition completion status to
neighbors. neighbors.
o The ability to advertise that a link is protected. o The ability to advertise that a link is protected.
Capability advertisement should make use of existing capability Capability advertisement should make use of existing capability
mechanisms in the routing protocols. The exact set of enhancements mechanisms in the routing protocols. The exact set of enhancements
will depend on specific IPFRR design choices. will depend on specific IPFRR design choices.
9. IANA considerations 9. IANA Considerations
There are no IANA considerations that arise from this architectural There are no IANA considerations that arise from this architectural
description of IPFRR. However there will be changes to the IGPs to description of IPFRR. However there will be changes to the IGPs to
support IPFRR in which there will be IANA considerations. support IPFRR in which there will be IANA considerations.
10. Security Considerations 10. Security Considerations
Changes to the IGPs to support IPFRR do not introduce any Changes to the IGPs to support IPFRR do not introduce any
additional security risks. additional security risks.
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