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* Move all developer related docs into developer/ * Move all figures into their own directory * Move manpages to own directory Signed-off-by: Quentin Young <qlyoung@cumulusnetworks.com>
210 lines
5.1 KiB
Plaintext
210 lines
5.1 KiB
Plaintext
.pl 10.0i
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.po 0
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.ll 7.2i
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.lt 7.2i
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.nr LL 7.2i
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.nr LT 7.2i
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.ds LF Ishiguro
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.ds RF FORMFEED[Page %]
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.ds CF
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.ds LH RFC DRAFT
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.ds RH March 1998
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.ds CH
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.hy 0
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.ad l
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Network Working Group K. Ishiguro
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Request for Comments: DRAFT Digital Magic Labs, Inc.
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March 1998
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.sp 2
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.ce
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Zebra Protocol Draft
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.sp 2
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.fi
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.ne 4
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Status of this Memo
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.sp
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.in 3
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This draft is very eary beta version.
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.sp
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.in 0
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.ne 4
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Introduction
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.sp
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.in 3
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The zebra protocol is a communication protocol between kernel
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routing table manager and routing protocol daemon. It is built over
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TCP/IP protocol suite.
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.sp
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.in 0
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.ne 4
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Request message formats
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.sp
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.in 3
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zebra is TCP-based protocol.
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.sp
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Below is request packet format.
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.sp
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.in 0
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.DS
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0 1 2 3
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0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
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+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
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| Length (2) | Command (1) |
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+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
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.DE
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.sp
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.in 3
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Length is total packet length.
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.sp
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Here is summary of command list.
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.sp
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.in 0
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.DS
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1 - ZEBRA_IPV4_ROUTE_ADD
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2 - ZEBRA_IPV4_ROUTE_DELETE
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3 - ZEBRA_IPV6_ROUTE_ADD
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4 - ZEBRA_IPV6_ROUTE_DELETE
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5 - ZEBRA_GET_ONE_INTERFACE
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6 - ZEBRA_GET_ALL_INTERFACE
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7 - ZEBRA_GET_HOSTINFO
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.DE
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.sp
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.in 0
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.ne 4
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IPv4 reply message formats
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.sp
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.in 0
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.DS
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0 1 2 3
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0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
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+-+-+-+-+-+-+-+-+
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| Type (1) |
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+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
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| Gateway (4) |
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+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
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.DE
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.sp
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.in 3
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Type field specify route's origin type.
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.sp
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.in 0
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.DS
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1 - ZEBRA_ROUTE_RESERVE
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2 - ZEBRA_ROUTE_CONNECT
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3 - ZEBRA_ROUTE_STATIC
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4 - ZEBRA_ROUTE_RIP
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5 - ZEBRA_ROUTE_RIPNG
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6 - ZEBRA_ROUTE_BGP
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7 - ZEBRA_ROUTE_RADIX
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.DE
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.sp
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.in 3
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After above message there can be variale length IPv4 prefix data.
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Each IPv4 prefix is encoded as a two tuple of the form <masklength,
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prefix>
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.sp
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.in 0
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.DS
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+----------------------+
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|Subnet mask (1 octet) |
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+----------------------+
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|IPv4 prefix (variable)|
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+----------------------+
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.DE
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.sp
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.in 0
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.ne 4
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IPv6 reply message formats
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.sp
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.in 0
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.DS
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0 1 2 3
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0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
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+-+-+-+-+-+-+-+-+
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| Type (1) |
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+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
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| |
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+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
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| Gateway (16) |
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+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
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+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
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+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
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.DE
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.sp
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.in 3
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Type field specify route's origin type.
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.sp
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.in 0
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.DS
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1 - ZEBRA_ROUTE_RESERVE
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2 - ZEBRA_ROUTE_CONNECT
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3 - ZEBRA_ROUTE_STATIC
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4 - ZEBRA_ROUTE_RIP
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5 - ZEBRA_ROUTE_RIPNG
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6 - ZEBRA_ROUTE_BGP
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7 - ZEBRA_ROUTE_RADIX
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.DE
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.sp
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.in 0
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.DS
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+----------------------+
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| ifindex (4 octet) |
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+----------------------+
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| prefixlen (1 octet)|
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+----------------------+
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|IPv6 prefix (variable)|
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+----------------------+
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.DE
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.sp
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.in 3
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I am not sure but it seems some operation systems IPv6
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implementation may need interface index when add and delete
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linklocal routes.
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.sp
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I have added ifindex field to specify IPv6 routes interface
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index. If this index is value zero, it will ignored.
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.sp
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.in 0
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.ne 4
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Interface information message format.
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.sp
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.in 0
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.DS
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0 1 2 3
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0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
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+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
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| Interface name (20) |
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+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
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| Index (1) |
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+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
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| Inteface flag (4) |
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+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
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| Inteface metric (4) |
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+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
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| Inteface MTU (4) |
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+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
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| Inteface Address count (4) |
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+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
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.DE
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.sp
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.in 3
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Address message format.
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.sp
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.in 0
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.ne 4
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Host inforamtion message format.
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.sp
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.in 0
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.DS
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0 1 2 3
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0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
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+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
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|IPv4 forwarding|IPv6 forwarding|
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+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
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.DE
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.sp
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.in 3
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Host information contain IPv4/IPv6 forwarding information.
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