Question

Static BFD session not come UP vs Huawei ME60


Hi experts:

Hardware: Summit X670G2-48x-4q
ExtremeXOS version: 16.1.2.14

I hope you can help me in this little issue, I am trying to bring up a BFD session in a p2p link from my x670 Extreme Stack with a Huawei Router ME60 in the other side, I have currently a BGP session ESTABLISHED between them, but the BFD is not coming UP.

On both sides I'm trying to configure BFD protection to keep checked the remote loopback reached by a static route (loopbacks interfaces where the BGP session is created).

First of all I tried to match the timers on Tx/Rx and the Multiplier 50,50 (minimum allowed on extreme side) and 3 (multiplier) with no results.

After that we changed to 1000ms on Tx/Rx on extreme side, then to 13500ms, then changed back to 50 and changed the local Discriminator as 1 in both sides. No results.

In the log always I'm getting the following message:

<"Received BFD an invalid packet on VLAN XXXXXX Error:Invalid ttl value for single Hop session">

I tried to shutdown/no shut ports , What can be the issue now???????? suggestions?????

Here I share the output and config from both nodes:

[ME60]***************************************************************************
--------------------------------------------------------------------------------
Session MIndex : 16722 (Multi Hop) State : Down Name : vpn_3
--------------------------------------------------------------------------------
Local Discriminator : 8519 Remote Discriminator : 0
Session Detect Mode : Asynchronous Mode Without Echo Function
BFD Bind Type : Peer IP Address
Bind Session Type : Static_Auto
Bind Peer IP Address : 172.31.50.74
Bind Interface : -
Bind Source IP Address : 172.31.50.73
Vpn Instance Name : vpn_three
FSM Board Id : 1 TOS-EXP : 7
Min Tx Interval (ms) : 50 Min Rx Interval (ms) : 50
Actual Tx Interval (ms): - Actual Rx Interval (ms): -
Local Detect Multi : 3 Detect Interval (ms) : -
Echo Passive : Disable Acl Number : -
Destination Port : 3784 TTL : 253
Proc Interface Status : Disable Process PST : Disable
WTR Interval (ms) : -
Active Multi : - DSCP : -
Last Local Diagnostic : No Diagnostic
Bind Application : AUTO
Session TX TmrID : - Session Detect TmrID : -
Session Init TmrID : - Session WTR TmrID : -
Session Echo Tx TmrID : -
PDT Index : FSM-4 | RCV-E | IF-1000000 | TOKEN-0
Session Description : -
--------------------------------------------------------------------------------

Total UP/DOWN Session Number : 7/7

CONFIGURATION:

[u]
bfd vpn_3 bind peer-ip 172.31.50.74 vpn-instance vpn_three source-ip 172.31.50.73 auto
bfd vpn_3 bind peer-ip 172.31.50.74 vpn-instance vpn_three source-ip 172.31.50.73 auto
min-tx-interval 50
min-rx-interval 50
commit

ip route-static vpn-instance vpn_three 172.31.249.118 255.255.255.255 172.31.50.74 track bfd-session vpn_3 description vpn_3

[x670]**************************************************************************************

* (vr vr-usr-fija-ext) Slot-1 SW_THREE.43 # show bfd session detail

Neighbor : 172.31.50.73 Local : 172.31.50.74

VR-Name : vr-usr-fija-ext Interface : user-fija-bras2

Session Type : Single Hop State : Down

Detect Time : 0 ms Age : 0 ms

Discriminator (local/remote) : 1 / 0

Demand Mode (local/remote) : Off / Off

Poll (local/remote) : Off / Off

Tx Interval (local/remote) : 50 / 1 ms

Rx Interval (local/remote) : 50 / 1 ms

oper Tx Interval : 50 ms

oper Rx Interval : 0 ms

Multiplier (local/remote) : 3 / 3

Local Diag : 0 (No Diagnostic)

Remote Diag : 0 (No Diagnostic)

Authentication : None

Clients : STATIC

Uptime : 00 days 00 hours 00 minutes 00 seconds

Up Count : 0

Last Valid Packet Rx : 00:00:00.0

Last Packet Tx : 15:49:15.307015

CONFIGURATION:

configure vlan user-fija-bras2 ipaddress 172.31.50.74 255.255.255.252
enable ipforwarding vlan user-fija-bras2

enable bfd vlan user-fija-bras2

configure bfd vlan user-fija-bras2 receive-interval 50 transmit-interval 50

enable iproute bfd 172.31.50.73 vr vr-usr-fija-ext

Please note that the Huawei router is under customer permises so I do not have the control to access this, each change I request is needed a customer intervention.

Thanks in advance for your thougts/suggestions.

Regards

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