Chapter 26 BWM (Bandwidth Management)
USG20(W)-VPN Series User’s Guide
408
802.1P Marking
Use 802.1P to prioritize outgoing traffic from a VLAN interface. The
Priority Code
is a 3-bit field
within a 802.1Q VLAN tag that’s used to prioritize associated outgoing VLAN traffic. "0" is the lowest
priority level and "7" is the highest.
The following table is a guide to types of traffic for the priority code.
To access this screen, go to the
Configuration > Bandwidth Management
screen (see
), and click either the
Add
icon or an
Edit
icon.
Figure 283
Configuration > Bandwidth Management > Edit (For the Default Policy)
Table 156
Single Tagged 802.1Q Frame Format
DA
SA
TPID Priority
VID
Len/Etype
Data
FCS
IEEE 802.1Q
customer
tagged frame
Table 157
802.1Q Frame
DA
Destination Address
Priority
802.1p Priority
SA
Source Address
Len/Etype
Length and type of Ethernet frame
TPID
Tag Protocol IDentifier
Data
Frame data
VID
VLAN ID
FCS
Frame Check Sequence
Table 158
Priority Code and Types of Traffic
PRIORITY
TRAFFIC TYPES
0 (lowest)
Background
1
Best Effort
2
Excellent Effort
3
Critical Applications
4
Video, less than 100 ms latency and jitter
5
Voice, less than 10 ms latency and jitter
6
Internetwork Control
7 (highest)
Network Control
Summary of Contents for ZyWall USG20-VPN
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