OpenFabric¶

OpenFabric, specified in draft-white-openfabric-06.txt, is a routing protocol derived from IS-IS, providing link-state routing with efficient flooding for topologies like spine-leaf networks.

FRR implements OpenFabric in a daemon called fabricd

Configuring fabricd¶

There are no fabricd specific options. Common options can be specified (Common Invocation Options) to fabricd. fabricd needs to acquire interface information from zebra in order to function. Therefore zebra must be running before invoking fabricd. Also, if zebra is restarted then fabricd must be too.

Like other daemons, fabricd configuration is done in an OpenFabric specific configuration file fabricd.conf.

OpenFabric router¶

To enable the OpenFabric routing protocol, an OpenFabric router needs to be created in the configuration:

router openfabric WORD¶

no router openfabric WORD¶: Enable or disable the OpenFabric process by specifying the OpenFabric domain with 'WORD'.

net XX.XXXX. ... .XXX.XX¶

no net XX.XXXX. ... .XXX.XX¶: Set/Unset network entity title (NET) provided in ISO format.

domain-password [clear | md5] <password>¶

no domain-password¶: Configure the authentication password for a domain, as clear text or md5 one.

log-adjacency-changes¶

no log-adjacency-changes¶: Log changes in adjacency state.

set-overload-bit¶

no set-overload-bit¶: Set overload bit to avoid any transit traffic.

purge-originator¶

no purge-originator¶: Enable or disable RFC 6232 purge originator identification.

fabric-tier (0-14)¶

no fabric-tier¶: Configure a static tier number to advertise as location in the fabric

OpenFabric Timer¶

lsp-gen-interval (1-120)¶

no lsp-gen-interval¶: Set minimum interval in seconds between regenerating same LSP.

lsp-refresh-interval (1-65235)¶

no lsp-refresh-interval¶: Set LSP refresh interval in seconds.

max-lsp-lifetime (360-65535)¶

no max-lsp-lifetime¶: Set LSP maximum LSP lifetime in seconds.

spf-interval (1-120)¶

no spf-interval¶: Set minimum interval between consecutive SPF calculations in seconds.

OpenFabric interface¶

ip router openfabric WORD¶

no ip router openfabric WORD¶

Activate OpenFabric on this interface. Note that the name of OpenFabric instance must be the same as the one used to configure the routing process (see command router openfabric WORD).

openfabric csnp-interval (1-600)¶

no openfabric csnp-interval¶: Set CSNP interval in seconds.

openfabric hello-interval (1-600)¶

no openfabric hello-interval¶: Set Hello interval in seconds.

openfabric hello-multiplier (2-100)¶

no openfabric hello-multiplier¶: Set multiplier for Hello holding time.

openfabric metric (0-16777215)¶

no openfabric metric¶: Set interface metric value.

openfabric passive¶

no openfabric passive¶: Configure the passive mode for this interface.

openfabric password [clear | md5] <password>¶

no openfabric password¶: Configure the authentication password (clear or encoded text) for the interface.

openfabric psnp-interval (1-120)¶

no openfabric psnp-interval¶: Set PSNP interval in seconds.

Showing OpenFabric information¶

show openfabric summary¶: Show summary information about OpenFabric.

show openfabric hostname¶: Show which hostnames are associated with which OpenFabric system ids.

show openfabric interface¶

show openfabric interface detail¶

show openfabric interface <interface name>¶: Show state and configuration of specified OpenFabric interface, or all interfaces if no interface is given with or without details.

show openfabric neighbor¶

show openfabric neighbor <System Id>¶

show openfabric neighbor detail¶: Show state and information of specified OpenFabric neighbor, or all neighbors if no system id is given with or without details.

show openfabric database¶

show openfabric database [detail]¶

show openfabric database <LSP id> [detail]¶

show openfabric database detail <LSP id>¶: Show the OpenFabric database globally, for a specific LSP id without or with details.

show openfabric topology¶: Show calculated OpenFabric paths and associated topology information.

Debugging OpenFabric¶

debug openfabric adj-packets¶

no debug openfabric adj-packets¶

OpenFabric Adjacency related packets.

debug openfabric checksum-errors¶

no debug openfabric checksum-errors¶

OpenFabric LSP checksum errors.

debug openfabric events¶

no debug openfabric events¶

OpenFabric Events.

debug openfabric local-updates¶

no debug openfabric local-updates¶

OpenFabric local update packets.

debug openfabric lsp-gen¶

no debug openfabric lsp-gen¶

Generation of own LSPs.

debug openfabric lsp-sched¶

no debug openfabric lsp-sched¶

Debug scheduling of generation of own LSPs.

debug openfabric packet-dump¶

no debug openfabric packet-dump¶

OpenFabric packet dump.

debug openfabric protocol-errors¶

no debug openfabric protocol-errors¶

OpenFabric LSP protocol errors.

debug openfabric route-events¶

no debug openfabric route-events¶

OpenFabric Route related events.

debug openfabric snp-packets¶

no debug openfabric snp-packets¶

OpenFabric CSNP/PSNP packets.

debug openfabric spf-events¶

debug openfabric spf-statistics¶

debug openfabric spf-triggers¶

no debug openfabric spf-events¶

no debug openfabric spf-statistics¶

no debug openfabric spf-triggers¶

OpenFabric Shortest Path First Events, Timing and Statistic Data and triggering events.

debug openfabric update-packets¶

no debug openfabric update-packets¶

Update related packets.

show debugging openfabric¶: Print which OpenFabric debug levels are active.

OpenFabric configuration example¶

A simple example:

!
interface lo
 ip address 192.0.2.1/32
 ip router openfabric 1
 ipv6 address 2001:db8::1/128
 ipv6 router openfabric 1
!
interface eth0
 ip router openfabric 1
 ipv6 router openfabric 1
!
interface eth1
 ip router openfabric 1
 ipv6 router openfabric 1
!
router openfabric 1
 net 49.0000.0000.0001.00