[c-nsp] MPLS over GRE/IPSEC

Arie Vayner (avayner) avayner at cisco.com
Wed Aug 8 01:14:17 EDT 2012

I would recommend looking at the lower end ASR1Ks for that... Maybe ASR1001...

-----Original Message-----
From: cisco-nsp-bounces at puck.nether.net [mailto:cisco-nsp-bounces at puck.nether.net] On Behalf Of Phil Mayers
Sent: Tuesday, August 07, 2012 04:24
To: cisco-nsp at puck.nether.net
Subject: [c-nsp] MPLS over GRE/IPSEC

What is the smallest Cisco device that can do 1Gbit/sec of MPLS over GRE over IPSEC?

On the LAN side, the device will need to do VLANS, IPv4 & IPv4, HSRP, multicast and possibly some basic QoS for VoIP prioritisation. On the WAN side, the device will need to tunnel MPLS L3VPN over GRE, then IPSec-protect the GRE traffic. Obviously it will need BGP/LDP. Physical interfaces will need to be 2x gigE, and the device will actually need to forward 1gig or very close to it.

The background here is that we have some remote sites we want to bring back into our MPLS L3VPN. We can obtain an IP connection with large MTU more cheaply than we can obtain an ethernet circuit, and we've been asked to price up some options.

Personally I think this architecture would be needlessly complex and likely more expensive, but I need to know what kit would be needed before I can price it up.

If anyone has any more general comments (e.g. "don't do it for reason
X") I'd be interested to hear them.

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