BFD configuration in NCS 520

[fcardoso]

Hi, 

I'm trying to configure bfd, to improve convergence times between ebgp neighbors... I'm using an NCS 520 with the "metroipaccess" license...
Has anyone tried this?

--- under the bdi´s interface:
"bfd interval 50 min_rx 50 multiplier 3"... 

**gives error: % Invalid input detected at '^' ma....

---inside BGP:

bgp router 64700
address-family ipv4 vrf IBMGMT
neighbor 10.100.100.25 fall-over bfd

**it is OK

Fernando

[MHM Cisco World]

Check below

MHM

[fcardoso]

Hi MHM, 

Thanks for the reeply..... 

The document explains it very well, but it is for ios XR, in my case i have iOS XE:

Cisco IOS XE Software, Version 17.09.05a
Cisco IOS Software [Cupertino], NCS520 Software (LINUX_IOSD), Version 17.9.5a

Fernando

[MHM Cisco World]

Bdi interface or bvi interface?

Did you try bfd template ?

MHM

[fcardoso]

***I tried template configur globaly:

NCS(config)#bfd-template ?
% Unrecognized command

NCS(config)#bfd ?
% Unrecognized command

NCS(config)#b?
banner beep boot boot-end-marker
boot-start-marker bridge bridge-domain buffers
bulkstat

## No bfd option......

***I tried template configur inside BGP:

NCS(config-router)#router bgp 64700
NCS(config-router)#template peer-session xxx
NCS(config-router-stmp)##?
BGP peer-policy configuration commands:
ao TCP-AO authentication
bmp-activate Activate the BMP monitoring for a BGP peer
cluster-id Configure Route-Reflector Cluster-id (peers may reset)
default Set a command to its defaults
description Neighbor specific description
disable-connected-check one-hop away EBGP peer using loopback address
dont-capability-negotiate Send Capability parameters in Open
ebgp-multihop Allow EBGP neighbors not on directly connected networks
exit-peer-session Exit from template configuration mode
fall-over session fall on peer route lost
ha-mode high availability mode
inherit Inherit a template
local-as Specify a local-as number
log-neighbor-changes Log neighbor up/down and reset reason
no Negate a command or set its defaults
password Set a password
path-attribute BGP optional attribute filtering
remote-as Specify a BGP neighbor
shutdown Administratively shut down this neighbor
timers BGP per neighbor timers
transport Transport options
ttl-security BGP ttl security check
update Modify update processing
update-source Source of routing updates
version Set the BGP version to match a neighbor

## No bfd option......

[MHM Cisco World]

https://www.cisco.com/c/en/us/td/docs/routers/ios/config/17-x/ip-routing/b-ip-routing/m_irb-bfd-bdi.html

[fcardoso]

OK o followed the doc and i have the configur:

!
interface GigabitEthernet0/0/18
no ip address
no negotiation auto
cdp enable
lacp rate fast
service instance 111 ethernet
encapsulation dot1q 111
rewrite ingress tag pop 1 symmetric
bridge-domain 111

interface BDI111
ip vrf forwarding XXX
ip address 10.100.100.26 255.255.255.252
end

Then i tried to configure:

VIR-NCS-01_LAB(config)#interface BDI111
VIR-NCS-01_LAB(config-if)#
VIR-NCS-01_LAB(config-if)#
VIR-NCS-01_LAB(config-if)#bfd interval 100 min_rx 100 multiplier 3
^
% Invalid input detected at '^' marker.

VIR-NCS-01_LAB(config-if)#bfd ?
% Unrecognized command
VIR-NCS-01_LAB(config-if)#b?
bandwidth

#no bfd option.....

[MHM Cisco World]

interface BDI111
ip vrf forwarding XXX <<- only for test remove vrf and check bfd 
ip address 10.100.100.26 255.255.255.252

[fcardoso]

OK, did not resolve:

interface BDI111
ip address 10.100.100.26 255.255.255.252
end

NCS(config-if)#
NCS(config-if)#int bdi111
NCS(config-if)#
NCS(config-if)#
NCS(config-if)#bfd
^
% Invalid input detected at '^' marker.