Huawei Quidway S3900 Series - Encapsulation Formats; Implementation of Protocol-Based Vlan; Procedure for the Switch to Judge Packet Protocol

Operation Manual -- VLAN
Quidway S3900 Series Ethernet Switches-Release 1510 Chapter 1 VLAN Overview
Huawei Technologies Proprietary
1-6
1.3.3 Procedure for the Switch to Judge Packet Protocol
Both are AA
Both are FF
Dsap
ssap
snap
llc
Match dsap
and ssap value
Match
type
Other values
snap
llc
snap
llc
snap
llc
Receive packets
Type (length ) field
0x600
0 to 0x05DC
0x6000x6000x600
0x05DC to 0x0600
Invalid packets that
cannot be matched
802.3 encapsulation
Control
field
Invalid packets that
cannot be matched
Value is 3
Value is not 3
snap
llc
Raw
encapsulation
snap
llc
snap
llc
snap
llc
snap
llc
snap
llc
snap
llc
snap
llc
snap
llc
snap
llc
snap
llc
snap encapsulation
llc encapsulation
0x6000x6000x600
Ethernet II
encapsulation
Match the
type value
0x600 to 0xFFF
Control
Both are AA
Both are FF
Dsap
ssap
snap
llc
Match dsap
and ssap value
Match
type
Other values
snap
llc
snap
llc
snap
llc
Both are AA
Both are FF
Dsap
ssap
snap
llc
Match dsap
and ssap value
Match
type
Other values
snap
llc
snap
llc
snap
llc
Dsap
ssap
snap
llc
Match dsap
and ssap value
Match
type
Other values
snap
llc
snap
llc
snap
llc
Receive packets
Type (length ) field
0x600
0 to 0x05DC
0x6000x6000x600
0x05DC to 0x0600
Invalid packets that
cannot be matched
802.3 encapsulation802.3 encapsulation
Control
field
Invalid packets that
cannot be matched
Value is 3
Value is not 3
snap
llc
Raw
encapsulation
snap
llc
snap
llc
snap
llc
snap
llc
Raw
encapsulation
snap
llc
snap
llc
snap
llc
snap
llc
snap
llc
snap
llc
snap
llc
snap
llc
snap
llc
snap
llc
snap encapsulation
llc encapsulation
0x6000x6000x600
Ethernet II
encapsulation
Match the
type value
0x600 to 0xFFF
Control
Both are AA
Both are FF
Dsap
ssap
snap
llc
Match dsap
and ssap value
Match
type
Other values
snap
llc
snap
llc
snap
llc
Both are AA
Both are FF
Dsap
ssap
snap
llc
Match dsap
and ssap value
Match
type
Other values
snap
llc
snap
llc
snap
llc
Dsap
ssap
snap
llc
Match dsap
and ssap value
Match
type
Other values
snap
llc
snap
llc
snap
llc
Receive packets
Type (length ) field
0x600
0 to 0x05DC
0x6000x6000x600
0x05DC to 0x0600
Invalid packets that
cannot be matched
802.3 encapsulation802.3 encapsulation
Control
field
Invalid packets that
cannot be matched
Value is 3
Value is not 3
snap
llc
Raw
encapsulation
snap
llc
snap
llc
snap
llc
snap
llc
Raw
encapsulation
snap
llc
snap
llc
snap
llc
snap
llc
snap
llc
snap
llc
snap
llc
snap
llc
snap
llc
snap
llc
snap encapsulation
llc encapsulation
0x6000x6000x600
Ethernet II
encapsulation
Match the
type value
0x600 to 0xFFF
Control
Both are AA
Both are FF
Dsap
ssap
snap
llc
Match dsap
and ssap value
Match
type
Other values
snap
llc
snap
llc
snap
llc
Dsap
ssap
snap
llc
Match dsap
and ssap value
Match
type
Other values
snap
llc
snap
llc
snap
llc
Both are AA
Both are FF
Dsap
ssap
snap
llc
Match dsap
and ssap value
Match
type
Other values
snap
llc
snap
llc
snap
llc
Dsap
ssap
snap
llc
Match dsap
and ssap value
Match
type
Other values
snap
llc
snap
llc
snap
llc
Receive packets
Type (length ) field
0x600
0 to 0x05DC
0x6000x6000x600
0x05DC to 0x0600
Invalid packets that
cannot be matched
802.3 encapsulation802.3 encapsulation
Control
field
Invalid packets that
cannot be matched
Value is 3
Value is not 3
snap
llc
Raw
encapsulation
snap
llc
snap
llc
snap
llc
snap
llc
Raw
encapsulation
snap
llc
snap
llc
snap
llc
snap
llc
snap
llc
snap
llc
snap
llc
snap
llc
snap
llc
snap
llc
snap encapsulation
llc encapsulation
0x6000x6000x600
Ethernet II
encapsulation
Match the
type value
0x600 to 0xFFF
Control
Figure 1-9 Procedure for the switch to judge packet protocol
1.3.4 Encapsulation Formats Encapsul
Table 1-1 Encapsulation formats
Ethernet
II
802.3 raw 802.3 LLC
802.3
SNAP
Type
value
IP Supported
Not
supported
Not
supported
Supported 0x0800
IPX Supported Supported Supported Supported 0x8137
AppleTalk Supported
Not
supported
Not
supported
Supported 0x809B
1.3.5 Implementation of Protocol-Based VLAN
S3900 series Ethernet switches assign the packet to the specific VLAN by matching the
packet with the protocol template.
Enca
p
sul
Protocol