SDP For VPRN

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SK47
Member
Posts: 1
Joined: 11 Jul 2020 01:29

SDP For VPRN

Post by SK47 »

Hi Team,

i am new with alcatel, Required little help with SDP. Below is the topology :-

R1(1.1.1.1)--------------R2(2.2.2.2)-------------R3(3.3.3.3)-------------------R4(4.4.4.4)

i have created a vprn service b/w R1 and R4 and a SPOKE SDP(using LDPoRSVP) is bind to vprn to reach R4. but SDP is not comming up.

1. RSVP LSP is created between R1 and R3. LSP is up and operational. LDP is enabled on all the interfaces as well.
2. TLDP session is Created b/w R1 and R3.
3. prefer-tunnel-in-tunnel and tunneling command is executed in LDP.

A:>config>router>ldp# info
----------------------------------------------
prefer-tunnel-in-tunnel
interface-parameters
interface "to_r2" dual-stack
ipv4
fec-type-capability
prefix-ipv6 disable
p2mp-ipv6 disable
exit
no shutdown
exit
no shutdown
exit
exit
targeted-session
peer 3.3.3.3
tunneling
lsp "to_R3"
exit
no shutdown
exit
exit
no shutdown
----------------------------------------------
A:>


A:>config>service>sdp# info
----------------------------------------------
far-end 4.4.4.4
ldp
keep-alive
shutdown
exit
no shutdown
----------------------------------------------
A:>config>service>sdp#


A:>config>service>vprn# info
----------------------------------------------
route-distinguisher 8888:8
vrf-target target:100:1
spoke-sdp 2 create
exit
no shutdown
----------------------------------------------
A:>config>service>vprn#


A:# show router tunnel-table

===============================================================================
IPv4 Tunnel Table (Router: Base)
===============================================================================
Destination Owner Encap TunnelId Pref Nexthop Metric
-------------------------------------------------------------------------------
2.2.2.2/32 ldp MPLS 65537 9 12.0.0.2 1010
3.3.3.3/32 rsvp MPLS 1 7 12.0.0.2 2000
3.3.3.3/32 ldp MPLS 65538 9 3.3.3.3 2010
4.4.4.4/32 ldp MPLS 65539 9 3.3.3.3 3000
-------------------------------------------------------------------------------
Flags: B = BGP backup route available
E = inactive best-external BGP route
===============================================================================
A:#




A:# show service sdp 2 detail

===============================================================================
Service Destination Point (Sdp Id : 2) Details
===============================================================================
-------------------------------------------------------------------------------
Sdp Id 2 -4.4.4.4
-------------------------------------------------------------------------------
Description : (Not Specified)
SDP Id : 2 SDP Source : manual
Admin Path MTU : 0 Oper Path MTU : 1488
Delivery : MPLS
Far End : 4.4.4.4
Tunnel Far End : 4.4.4.4 LSP Types : LDP

Admin State : Up Oper State : Down
Signaling : TLDP Metric : 0
Acct. Pol : None Collect Stats : Disabled
Last Status Change : 03/15/2015 10:54:01 Adv. MTU Over. : No
Last Mgmt Change : 03/15/2015 10:33:09 VLAN VC Etype : 0x8100
Bw BookingFactor : 100 PBB Etype : 0x88e7
Oper Max BW(Kbps) : 0 Avail BW(Kbps) : 0
Net-Domain : default Egr Interfaces : Consistent
Flags : TldpSessDown

Mixed LSP Mode Information :
Mixed LSP Mode : Disabled Active LSP Type : LDP




Thanks
lo0
Member
Posts: 35
Joined: 16 Feb 2016 11:46

Re: SDP For VPRN

Post by lo0 »

The flag above is: "TldpSessDown:

This indicates the Targeted LDP (T-LDP) session is down. Maybe an interface somewhere between R1 & R4 isn't running LDP?
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