Huawei Quidway S3000-EI Series User Manual

Operation Manual - QoS/ACL
Quidway S3000-EI Series Ethernet Switches Chapter 1
ACL Configuration
Huawei Technologies Proprietary
1-7
Figure 1-1 The first 64 bytes of data frame
The table below lists the meaning and offset of each letter.
Table 1-7 Letters and their meanings
Letter Meaning Offset Letter Meaning
Offs
et
A
Destination MAC
0 O TTL field
address
34
B
address
6 P
Protocol number (6 is
TCP and 17 is UDP).
35
Source MAC
C
Data frame length
12 Q IP checksum
field
36
D VLAN tag field 14 R Source IP address 38
E
DSAP tion
Service Access
18 S Destination IP address 4
(Destina
Point) field
2
F
SSAP (Source
Service Access
Point) field
19 T TCP source port 46
G 20 U TCP destination port 48 Ctrl field
H de field 21 V Sequence number 50 org co
I
Data
24 W Acknowledgement field 54
Encapsulated
type
J 26 XY
currently unused bit
58 IP version
IP header length and
K TOS field 27 Z
Currently unused
and flags bit
bits
59
L IP packet length 28 a Window Size field 60
M ID number 30 b Others 62
N 32 Flags field
The offsets listed in the above table are the field off ata
frame. In the user-defined ACL, you can use the rul eters to
select any bytes from the first 64 bytes of the data f the
user-define ta frames an . The rules
d ned by ome prop ies of ple, to r all
sets in the SNAP+tag 802.3 d
e mask and offset param
rame and compare them
with
d rule to filter the matche
the user can be s
d da
fixed
d process accordingly
the data. For exam
efi ert filte

Huawei Quidway S3000-EI Series Specifications

General

Brand	Huawei
Model	Quidway S3000-EI Series
Category	Switch
Language	English