The MPLS-OPS Archive

[<werconsulting@hushmail.com>]

Hi,

I'm looking for information wrt large/baby giant frame sizes used in
MPLS VPN scenarios.  More specifically, I'm doing work for a company
on Ethernet chipset selection.  I noticed in the Martini draft Ethernet
frame sizes could reach 1544 bytes in size.  A number of the 5-7 port
Ethernet chip switching devices supports frames sizes up to 1536 bytes.
 The ones I've located that supports >=1544 bytes has other limitations.
 The company has some specific requirements wrt number of VLANs supported,
 hardware queues, MII interfaces, port statistics gathered, pricing,
etc.  Does anyone know of any Ethernet chips within this port range that
supports frames sizes >= 1544 bytes?  I've read some other drafts which
discuss fragmenting any frames >15xx bytes in size.  Do any of the current
LER's on the market perform any framgentation if the max MTU exceeds
1544B along the path?

Part of this requirement includes trying to determine when LER's will
become inexpensive enough to be installed in MTU/MDU environments to
provide L2/L3 MPLS VPNs.  I've heard a few different thoughts on this.
 One is the current pricing of these devices is still 8-10 times of what
a "typical" L2 VLAN switch in the basement would be.  Does anyone have
any experiences with this?

Regards,

Geoff



Concerned about your privacy? Follow this link to get
FREE encrypted email: https://www.hushmail.com/?l=2 

Big $$$ to be made with the HushMail Affiliate Program: 
https://www.hushmail.com/about.php?subloc=affiliate&l=427

-------
The MPLS-OPS Mailing List
Subscribe/Unsubscribe:  http://www.mplsrc.com/mplsops.shtml
Archive: http://www.mplsrc.com/mpls-ops_archive.shtml