Is it possible to configure an SI interface on an aggreagted ethernet port for L2TP?
Downstream LAC connects to a switch on a VLAN and then 2 x 10g ports connect to the MX104 on ae0.
I cannot seem to find docs that say whether you can or not. I thought the SI interfaces was tied to a physical port and therefore would not work with an ae interface. Could you let me know if this is possible please?
Hi adgwytc ,
As per my understanding, you are trying to configure the si on the MX routers.
If yes, per my knowledge I think we will not be able to do this configuration on the aggregated ethernet (AE) bundle as you would need a physical interface to carry the L2TP tunnel packets.
The inline service interface is a virtual physical service interface that resides on the Packet Forwarding Engine.This si interface, referred to as an anchor interface, makes it possible to provide L2TP services without a special services PIC. The inline service interface is supported only by MPCs on MX Series routers. Four inline service interfaces are configurable per MPC-occupied chassis slot.
Link: Enabling Inline Service Interfaces and also L2TP Minimum Configuration .
Hope this helps.
Please mark "Accept as solution" if this answers your query.
Kudos are appreciated too!
Apologies, I can accept the previous reply as a solution in a while, I just need to confirm the following please....
MX80 with the following hardware:
m Version Part number Serial number DescriptionChassis F3594 MX80Midplane REV 08 711-031594 ZL2078 MX80PEM 0 Rev 04 740-028288 VC03685 AC Power Entry ModulePEM 1 Rev 04 740-028288 VC02561 AC Power Entry ModuleRouting Engine BUILTIN BUILTIN Routing EngineTFEB 0 BUILTIN BUILTIN Forwarding Engine ProcessorQXM 0 REV 05 711-028408 ZK0991 MPC QXMFPC 0 BUILTIN BUILTIN MPC BUILTINMIC 0 BUILTIN BUILTIN 4x 10GE XFPPIC 0 BUILTIN BUILTIN 4x 10GE XFPXcvr 0 REV 01 740-011613 M1402130132 XFP-10G-SRXcvr 3 REV 01 740-011613 M1402130176 XFP-10G-SRFPC 1 BUILTIN BUILTIN MPC BUILTINFan Tray Fan Tray
And when trying to commit with an si interface I get the following error:
error: Service interface si-0/0/0 is not supported on MX80Service device pool lnserror: configuration check-out failed
However, as I am sure you are aware, when configuring an L2TP group-profile this is a mandotory statement.
Can you let me know please if there is a card missing as the MPC is inbuilt?
MX104 contains the same forwarding engine as MPC2 and si-* interfaces are fully supported:
On MX80 and MX104 routers, you can configure only four inline services physical interfaces as anchor interfaces for L2TP LNS sessions: si-1/0/0, si-1/1/0, si-1/2/0, and si-1/3/0. You cannot configure si-0/0/0 for this purpose on MX80 and MX104 routers.
Please try configuring si-1/*/0 and let us know if it works.
Please accept the solution if your problem is resolved
Short answer is no.
The long answer is if You are after redundancy for SI interfaces, You can use 1:1 Aggregated Service Interface (ASI) for L2TP
It is supported on MX80 as well
However, ASI - or multiple SI - on MX80 (and MX104) does not make much sense since MX80 has a single forwarding chip, and SI/ASI is a feature of the forwarding chip as a whole, not a feature of individual port. In other words, if You have si-1/0/0 interface and ge-1/0/0 interface, then when ge-1/0/0 goes down, si-1/0/0 does not.