nanog mailing list archives
Re: [nsp] Cisco DS3 Questions..
From: Bill Woodcock <woody () zocalo net>
Date: Fri, 22 Feb 2002 09:48:04 -0800 (PST)
> In practice, HDLC is the dominant encapsulation, primarily since it's > Cisco's default. If for no other reason, you should use HDLC because almost > everyone expects you to be using it. PPP is obviously present in non-Cisco > shops, and anywhere MLPPP or LFI is needed. FR is only used as a p-t-p > encapsulation in certain cases that require it; almost nobody uses it > without a good reason. I'd second that reasoning. FWIW, MLPPP is one of the main reasons that PPP seems to get used now, the ability to bond multiple DS1s together, or even multiple DS3s, potentially, although there's little market force to do that. The main reason for running frame relay on a single point-to-point would probably be preservation of VLANs across a bridged link in a controlled way. Not saying that's a particularly good use, just that that's the most common reason I've seen it deployed on otherwise simple point-to-points. The idea behind frame relay is that it gives you a multipoint layer-2 protocol to use on a more complicated network of circuits. -Bill
Current thread:
- Cisco DS3 Questions.. Gyorfy, Shawn (Feb 21)
- Re: Cisco DS3 Questions.. Christopher A. Woodfield (Feb 21)
- Re: Cisco DS3 Questions.. Justin Streiner (Feb 21)
- Re: Cisco DS3 Questions.. Barton F Bruce (Feb 21)
- Re: [nsp] Cisco DS3 Questions.. Stephen Sprunk (Feb 22)
- Re: [nsp] Cisco DS3 Questions.. Bill Woodcock (Feb 22)
- Re: [nsp] Cisco DS3 Questions.. Niels Bakker (Feb 22)
- Re: [nsp] Cisco DS3 Questions.. Jesper Skriver (Feb 22)
- Re: [nsp] Cisco DS3 Questions.. Mike Joseph (Feb 22)
- Re: [nsp] Cisco DS3 Questions.. Jesper Skriver (Feb 22)
- Re: [nsp] Cisco DS3 Questions.. Eliot Lear (Feb 25)
- Re: [nsp] Cisco DS3 Questions.. Jesper Skriver (Feb 25)
- Re: [nsp] Cisco DS3 Questions.. Robert E. Seastrom (Feb 25)
- Re: [nsp] Cisco DS3 Questions.. Jesper Skriver (Feb 25)
- Re: Cisco DS3 Questions.. Christopher A. Woodfield (Feb 21)