09-23-2005 01:16 PM
Hi,
I'm trying to do an extended ping across an IP network. I want to be able to set the Type of Service of the packets to the same as that of our VoiP packets, which are tagged with DSCP EF.
What Type of Service value should I use to achieve this.
Also, the ToS values for DSCP AF31 and AF32 would be helpful too if possible
Thanks
Lee
Solved! Go to Solution.
09-24-2005 08:39 PM
Hi Lee,
Here's the mapping you will need. "=" means something like "maps to" or "is equivelent to".
ef = dscp 46 = 101110 = tos 0xb8 (184) = ip prec 5
af31 = dscp 26 = 011010 = tos 0x68 (104) = ip prec 3
af32 = dscp 28 = 011100 = tos 0x70 (112) = ip prec 3
cs3 = dscp 24 = 011000 = tos 0x60 (96) = ip prec 3
You'll want to use the decimal tos values (in parenthesis) for your e-pings.
Let me know if this helps by rating the post.
09-24-2005 08:39 PM
Hi Lee,
Here's the mapping you will need. "=" means something like "maps to" or "is equivelent to".
ef = dscp 46 = 101110 = tos 0xb8 (184) = ip prec 5
af31 = dscp 26 = 011010 = tos 0x68 (104) = ip prec 3
af32 = dscp 28 = 011100 = tos 0x70 (112) = ip prec 3
cs3 = dscp 24 = 011000 = tos 0x60 (96) = ip prec 3
You'll want to use the decimal tos values (in parenthesis) for your e-pings.
Let me know if this helps by rating the post.
09-26-2005 06:21 PM
Hi Lee and Michael.
Should anyone need values other than these, the simple way of calculating them is to put your binary representation of the value into your calculator (scientific view)and append two zero's to the end.
eg 101110 becomes 10111000.
I believe this is becuase the Cisco extended ping interprets all 8 bits in the field, not just the leading 6.
Hope it is helpful.
08-01-2018 09:34 PM
11-14-2006 03:24 AM
voice_gw#ping ip
Target IP address: 144.122.216.58
Repeat count [5]: 100
Datagram size [100]:
Timeout in seconds [2]:
Extended commands [n]: y
Source address or interface: 144.44.88.21
Type of service [0]: 184 --->dscp is ef
Set DF bit in IP header? [no]:
Validate reply data? [no]:
Data pattern [0xABCD]:
Loose, Strict, Record, Timestamp, Verbose[none]:
Sweep range of sizes [n]:
Type escape sequence to abort.
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