As a side note, in the real world I tend to use "match dscp" so that when my customers eventually start doing IPv6 the QOS model still works.
Bob -- Sent from my iPhone, please excuse any typos. > On Dec 15, 2013, at 12:28 PM, Christopher Lemish <[email protected]> > wrote: > > Thanks Bob! Great info. > > - Chris > > > > -----Original Message----- > From: Bob McCouch [mailto:[email protected]] > Sent: Sunday, December 15, 2013 12:13 PM > To: Christopher Lemish > Cc: [email protected] > Subject: Re: [OSL | CCIE_RS] Policy-Map: Matching on DSCP value > > Yep, the "ip" flavor of the command matches or sets ONLY the DSCP field in > IPv4 packets, in the TOS byte. The "set DSCP" or "match DSCP" field will also > match the Traffic Class field in IPv6 packets. > > So in an IPv4 only network, there's no real difference I know of. In a > dual-stack network you want the one that isn't specific to IP(v4). > > Bob McCouch > CCIE #38296, R/S > HerdingPackets.net > -- > Sent from my iPhone, please excuse any typos. > >> On Dec 15, 2013, at 11:53 AM, Christopher Lemish >> <[email protected]> wrote: >> >> Does anyone know if there is a difference in matching the DSCP value whether >> you use the "set ip dscp af31" vs. "set dscp af31" "ip" parameter? >> >> class-map match-all TEST-Citrix >> match protocol citrix >> ! >> policy-map R5-Classify >> class TEST-Sql >> set dscp af31 >> OR >> policy-map R5-Classify >> class TEST-Sql >> set ip dscp af31 >> >> _______________________________________________ >> Free CCIE R&S, Collaboration, Data Center, Wireless & Security Videos :: >> >> iPexpert on YouTube: www.youtube.com/ipexpertinc _______________________________________________ Free CCIE R&S, Collaboration, Data Center, Wireless & Security Videos :: iPexpert on YouTube: www.youtube.com/ipexpertinc
