Yep, there is.
IP Precedence value multiplied by 8 = DSCP value. So IP Prec 1 = DSCP 8 = CS1 IP Prec 2 = DSCP 16 etc. = CS2 Another useful formula is converting DSCP value names to TOS values. DSCP values are shown as AFxy where x is the IP Prec value and y is the Drop probability. To translate those into DSCP numbers: Multiply x *8 and add that to y * 2. So AF11 = 1*8 + 1*2 = DSCP 10. AF23 = 2*8 + 1*3 = DSCP 22 Cheers, Jared Scrivener CCIE2 #16983 (R&S, Security), CISSP Technical Instructor - IPexpert, Inc. Telephone: +1.810.326.1444 Fax: +1.810.454.0130 Mailto: [EMAIL PROTECTED] _____ From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of khalid aljorf Sent: Monday, 30 June 2008 3:58 AM To: [email protected] Subject: [OSL | CCIE_RS] Precedence and DSCP Greetings all, is there any formula that we can use to calculate what each IP precedence value equal in DSCP ( i.e IP precedence 5 = DSCP 40 and IP precedence 4= 32)? regards
