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Add user-guide for unnumbered

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Pim van Pelt
2024-04-07 19:07:59 +02:00
parent 58c505703c
commit 790f415e60
1 changed files with 14 additions and 0 deletions
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docs/config-guide.md
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@ -76,6 +76,9 @@ following fields:
* ***mpls***: An optional boolean that configures MPLS on the interface or sub-interface. The * ***mpls***: An optional boolean that configures MPLS on the interface or sub-interface. The
default value is `false`, if the field is not specified, which means MPLS will not be enabled. default value is `false`, if the field is not specified, which means MPLS will not be enabled.
This allows BVIs, represented by Loopbacks, to participate in MPLS . This allows BVIs, represented by Loopbacks, to participate in MPLS .
* ***unnumbered***: An interface name from which this loopback interface will borrow IPv4 and
IPv6 addresses. The interface can be either a loopback, an interface or a sub-interface. if
the interface is unnumbered, it can't be L2 and it can't have addresses.
Although VPP would allow it, `vppcfg` does not allow for loopbacks to have sub-interfaces. Although VPP would allow it, `vppcfg` does not allow for loopbacks to have sub-interfaces.
@ -312,6 +315,10 @@ exist as a PHY in VPP (ie. `HundredGigabitEthernet12/0/0`) or as a specified `Bo
`dpdk`, and it is used to generate correct mock interfaces if the `--novpp` flag is used. `dpdk`, and it is used to generate correct mock interfaces if the `--novpp` flag is used.
* ***mpls***: An optional boolean that configures MPLS on the interface or sub-interface. The * ***mpls***: An optional boolean that configures MPLS on the interface or sub-interface. The
default value is `false`, if the field is not specified, which means MPLS will not be enabled. default value is `false`, if the field is not specified, which means MPLS will not be enabled.
* ***unnumbered***: An interface name from which this (sub-)interface will borrow IPv4 and
IPv6 addresses. The interface can be either a loopback, an interface or a sub-interface. if
the interface is unnumbered, it can't be L2 and it can't have addresses.
Further, top-level interfaces, that is to say those that do not have an encapsulation, are permitted Further, top-level interfaces, that is to say those that do not have an encapsulation, are permitted
to have any number of sub-interfaces specified by `subid`, an integer between [0,2G), which further to have any number of sub-interfaces specified by `subid`, an integer between [0,2G), which further
@ -351,10 +358,14 @@ interfaces:
dot1q: 1234 dot1q: 1234
inner-dot1q: 1000 inner-dot1q: 1000
exact-match: True exact-match: True
1236:
mtu: 1500
unnumbered: HundredGigabitEthernet12/0/0.1235
BondEthernet0: BondEthernet0:
mtu: 9000 mtu: 9000
lcp: "bond0" lcp: "bond0"
unnumbered: loop0
sub-interfaces: sub-interfaces:
100: 100:
mtu: 2500 mtu: 2500
@ -368,6 +379,9 @@ interfaces:
encapsulation: encapsulation:
dot1q: 200 dot1q: 200
exact-match: False exact-match: False
300:
mtu: 1500
unnumbered: loop0
``` ```
### Prefix Lists ### Prefix Lists