Siemens HiPath 3000 Series, Service Documentation

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h3h5_in_the_lan.fm
A31003-H3590-S100-7-7620, 06/2012
HiPath 3000/5000 V9, Service documentation
13-51
Nur für den internen Gebrauch
HiPath 3000/5000 in the LAN Network
HG 1500 Board
“QoS Capability”. When the default value is set (“identical”), nothing is translated; with the val-
ues “DiffServ” or “IP Precedence”, translation is performed on the basis of the table below, if
data is not entered in the field in accordance with the standard set.
In the case of IP data traffic, the IP packets that generate HG 1500 are split into five groups (for
example, the H.323 gateway). You can set which codepoint is to be used for marking the pack-
ets for four of these groups. This is configured under “Basic Settings > QoS priority classes”:
●
Voice Payload for H.323 telephony (Voice over IP)
●
Call Signaling for connection setup in H.323
●
Data Payload, for example, for IP networking with fax or modem
●
Network Control, for example, SNMP traps
The remaining data traffic is marked “disabled”, that is 00.
The following table shows the relationship between the various codepoints of DiffServ, IP pre-
cedence and the “User Priority” field in the Ethernet header.
Table 13-4 Codepoint Implementation
IP header Ethernet
header
DiffServ vs. IP Precedence IEEE802.1p
Code-
point
Default (can be
changed)
Drop level Assignment
(fixed)
Binary
(bit field)
ToS
field
(hex)
high med low Binary
(bit field)
ToS
field
(hex)
User Priority
(binary, bit
field)
CS7 111000 E0 x <-> 111 E0 111
AF 11 001010 28 x -> 110 C0 110
AF 12 001100 30 x <-> 110 C0 110
AF 13 001110 38 x -> 110 C0 110
AF 21 010010 48 x -> 101 A0 101
AF 22 010100 50 x <-> 101 A0 101
AF 23 010110 58 x -> 101 A0 101
AF 31 011010 68 x -> 100 80 100
AF 32 011100 70 x <-> 100 80 100
AF 33 011110 78 x -> 100 80 100
AF 41 100010 88 x <-> 011 60 011