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a90d4c45db
The isis-lfa-topo1 topotest shows backup routes with lower metrics than
the primary ones.
> rt1# show isis route
> Area 1:
> IS-IS L1 IPv6 routing table:
>
> Prefix Metric Interface Nexthop Label(s)
> ------------------------------------------------------------------------------
> 2001:db8:1000::1/128 0 - - -
> 2001:db8:1000::2/128 20 eth-rt2 fe80::d091:eeff:fe09:31cd -
> 2001:db8:1000::3/128 20 eth-rt3 fe80::946b:d4ff:fe5b:414b -
> 2001:db8:1000::4/128 20 eth-rt4 fe80::5ced:29ff:feed:59c4 -
> (...)
>
> rt1# show isis route backup
> Area 1:
> IS-IS L1 IPv6 routing table:
>
> Prefix Metric Interface Nexthop Label(s)
> ------------------------------------------------------------------------------
> 2001:db8:1000::2/128 15 eth-rt3 fe80::946b:d4ff:fe5b:414b -
> eth-rt5 fe80::847d:feff:fe74:bdde -
> eth-rt6 fe80::ac8c:dff:feac:8a8d -
> 2001:db8:1000::3/128 15 eth-rt2 fe80::d091:eeff:fe09:31cd -
> eth-rt5 fe80::847d:feff:fe74:bdde -
> 2001:db8:1000::4/128 45 eth-rt5 fe80::847d:feff:fe74:bdde -
> (...)
Backup routes metrics are incorrect because they only take into account
the path metric but not the prefix metric.
Add the prefix metric to the path metric on backup routes.
After the patch with a prefix metric of 10:
> rt1# show isis route backup
> Area 1:
> IS-IS L1 IPv6 routing table:
>
> Area 1:
> IS-IS L1 IPv6 routing table:
>
> Prefix Metric Interface Nexthop Label(s)
> ------------------------------------------------------------------------------
> 2001:db8:1000::2/128 25 eth-rt3 fe80::8c6f:8aff:fe10:ad0d -
> eth-rt5 fe80::b08e:5cff:fe90:62dd -
> eth-rt6 fe80::4810:47ff:fe81:2b9a -
> 2001:db8:1000::3/128 25 eth-rt2 fe80::e855:12ff:fe31:5765 -
> eth-rt5 fe80::b08e:5cff:fe90:62dd -
> 2001:db8:1000::4/128 55 eth-rt5 fe80::b08e:5cff:fe90:62dd -
Fixes:
|
||
|---|---|---|
| .github | ||
| alpine | ||
| babeld | ||
| bfdd | ||
| bgpd | ||
| debian | ||
| doc | ||
| docker | ||
| eigrpd | ||
| fpm | ||
| gdb | ||
| grpc | ||
| include | ||
| isisd | ||
| ldpd | ||
| lib | ||
| m4 | ||
| mlag | ||
| nhrpd | ||
| ospf6d | ||
| ospfclient | ||
| ospfd | ||
| pathd | ||
| pbrd | ||
| pceplib | ||
| pimd | ||
| pkgsrc | ||
| python | ||
| qpb | ||
| redhat | ||
| ripd | ||
| ripngd | ||
| sharpd | ||
| snapcraft | ||
| staticd | ||
| tests | ||
| tools | ||
| vrrpd | ||
| vtysh | ||
| watchfrr | ||
| yang | ||
| zebra | ||
| .clang-format | ||
| .dir-locals.el | ||
| .dockerignore | ||
| .git-blame-ignore-revs | ||
| .gitignore | ||
| .pylintrc | ||
| .travis.yml | ||
| bootstrap.sh | ||
| buildtest.sh | ||
| config.version.in | ||
| configure.ac | ||
| COPYING | ||
| COPYING-LGPLv2.1 | ||
| Makefile.am | ||
| README.md | ||
| stamp-h.in | ||
| version.h | ||
FRRouting
FRR is free software that implements and manages various IPv4 and IPv6 routing protocols. It runs on nearly all distributions of Linux and BSD and supports all modern CPU architectures.
FRR currently supports the following protocols:
- BGP
- OSPFv2
- OSPFv3
- RIPv1
- RIPv2
- RIPng
- IS-IS
- PIM-SM/MSDP
- LDP
- BFD
- Babel
- PBR
- OpenFabric
- VRRP
- EIGRP (alpha)
- NHRP (alpha)
Installation & Use
For source tarballs, see the releases page.
For Debian and its derivatives, use the APT repository at https://deb.frrouting.org/.
Instructions on building and installing from source for supported platforms may be found in the developer docs.
Once installed, please refer to the user guide for instructions on use.
Community
The FRRouting email list server is located here and offers the following public lists:
| Topic | List |
|---|---|
| Development | dev@lists.frrouting.org |
| Users & Operators | frog@lists.frrouting.org |
| Announcements | announce@lists.frrouting.org |
For chat, we currently use Slack. You can join by clicking the "Slack" link under the Participate section of our website.
Contributing
FRR maintains developer's documentation which contains the project workflow and expectations for contributors. Some technical documentation on project internals is also available.
We welcome and appreciate all contributions, no matter how small!
Security
To report security issues, please use our security mailing list:
security [at] lists.frrouting.org