[162464] in North American Network Operators' Group

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Cross country point to point link question

daemon@ATHENA.MIT.EDU (Petter Bruland)
Thu Apr 18 12:21:07 2013

From: Petter Bruland <Petter.Bruland@allegiantair.com>
To: "nanog@nanog.org" <nanog@nanog.org>
Date: Thu, 18 Apr 2013 16:20:18 +0000
Errors-To: nanog-bounces+nanog.discuss=bloom-picayune.mit.edu@nanog.org

Question for someone with some experience with long haul links (Las Vegas -=
- New Jersey)

[Cisco 4510 - SVI-VLAN x]---trunk---[Nexus5K LH optic]=3D=3D=3Dfiber=3D=3D=
=3D{carriers across country}=3D=3D=3Dfiber=3D=3D=3D[Nexus5K LH optic]---tru=
nk---[Cisco 4510 - SVI-VLAN x]

We have two circuits, one that is the same vendor from east to west, and th=
e other circuit is a two vendor deal. Both circuits are 1 Gbps with around =
67-70 ms delay.

As soon as we had the links turned up, our SAN guy started complaining abou=
t poor throughput, asking us to throw in a couple of wan accelerators.
He was seeing a max throughput of around ~200 Mbps.

Question: For a long haul 1 Gbps link with 67-70 ms delay, would  installin=
g a pair of wan accelerators make a big difference?=20

Thanks,
-Petter Bruland



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