nanog mailing list archives
Re: ip-precedence for management traffic
From: Paul Ferguson <fergdawgster () gmail com>
Date: Thu, 31 Dec 2009 00:15:25 -0800
-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 On Thu, Dec 31, 2009 at 12:08 AM, Fred Baker <fred () cisco com> wrote:
RFC 4594 would suggest using DSCP CS2 (010000xx in the TOS byte; xx is the ECN flags). Section 3.1 discusses the issues with CS7, which is the DSCP counterpart to the deprecated IP Precedence 7. RFCs 2474/2475 discuss the Differentiated Services Architecture and its implementation. http://www.ietf.org/rfc/rfc4594.txt 4594 Configuration Guidelines for DiffServ Service Classes. J. Babiarz, K. Chan, F. Baker. August 2006. (Format: TXT=144044 bytes) (Status: INFORMATIONAL) http://www.ietf.org/rfc/rfc2474.txt 2474 Definition of the Differentiated Services Field (DS Field) in the IPv4 and IPv6 Headers. K. Nichols, S. Blake, F. Baker, D. Black. December 1998. (Format: TXT=50576 bytes) (Obsoletes RFC1455, RFC1349) (Updated by RFC3168, RFC3260) (Status: PROPOSED STANDARD) http://www.ietf.org/rfc/rfc2475.txt 2475 An Architecture for Differentiated Service. S. Blake, D. Black, M. Carlson, E. Davies, Z. Wang, W. Weiss. December 1998. (Format: TXT=94786 bytes) (Updated by RFC3260) (Status: INFORMATIONAL)
I feel compelled to say that once a packet leaves you administrative control, all bets are off, of course. IP Precedence flagging is not an honored "bit" in The Internet. Of course, if you own the end-to-end path, anything is possible. - - ferg -----BEGIN PGP SIGNATURE----- Version: PGP Desktop 9.5.3 (Build 5003) wj8DBQFLPF2Yq1pz9mNUZTMRAhv/AKCNk2WiQt+zhO3o9EI/aOR2IMgvzwCgwSkQ ueQBckYm/1cTx5/atLaFd0A= =ooNM -----END PGP SIGNATURE----- -- "Fergie", a.k.a. Paul Ferguson Engineering Architecture for the Internet fergdawgster(at)gmail.com ferg's tech blog: http://fergdawg.blogspot.com/
Current thread:
- Re: ip-precedence for management traffic, (continued)
- Re: ip-precedence for management traffic Joe Provo (Dec 30)
- RE: ip-precedence for management traffic Tomas L. Byrnes (Dec 29)
- Re: ip-precedence for management traffic David Conrad (Dec 29)
- Re: ip-precedence for management traffic Randy Bush (Dec 29)
- Re: ip-precedence for management traffic Michael Thomas (Dec 29)
- Re: ip-precedence for management traffic Jared Mauch (Dec 29)
- RE: ip-precedence for management traffic Sachs, Marcus Hans (Marc) (Dec 29)
- Re: ip-precedence for management traffic Dorn Hetzel (Dec 29)
- Re: ip-precedence for management traffic Paul Ferguson (Dec 31)
- Re: ip-precedence for management traffic Michael Thomas (Dec 30)