Sip Any To Wan Bandwidth Management Example - ZyXEL Communications ZYWALL USG 20 Manual

Chapter 28 Bandwidth Management
Here is an overview of what the rules need to accomplish. See the following
sections for more details.
• SIP traffic from VIP users must get through with the least possible delay
regardless of if it is an outgoing call or an incoming call. The VIP users must be
able to make and receive SIP calls no matter which interface they are connected
to.
• HTTP traffic needs to be given priority over FTP traffic.
• FTP traffic from the WAN to the DMZ must be limited so it does not interfere
with SIP and HTTP traffic.
• FTP traffic from the LAN1 to the DMZ can use more bandwidth since the
interfaces support up to 1 Gbps connections, but it must be the lowest priority
and limited so it does not interfere with SIP and HTTP traffic.
Figure 281 Bandwidth Management Example
SIP: Any to WAN
Outbound: 200 Kbps
Inbound: 200 Kbps
Priority: 1
Max. B. U.
HTTP: Any to WAN
Outbound: 100 Kbps
Inbound: 500 Kbps
Priority: 2
Max. B. U.
FTP: WAN to DMZ
Outbound: 100 Kbps
Inbound: 300 Kbps
Priority: 3
No Max. B. U.
28.1.3.1 Setting the Interface's Bandwidth
Use the interface screens to set the WAN zone interface's upstream bandwidth to
be equal to (or slightly less than) what the connected device can support. This
example uses 1000 Kbps.

28.1.3.2 SIP Any to WAN Bandwidth Management Example

• Manage SIP traffic going to the WAN zone from a VIP user on the LAN or DMZ.
• Outbound traffic (to the WAN from the LAN and DMZ) is limited to 200 kbps. The
ZyWALL applies this limit before sending the traffic to the WAN.
• Inbound traffic (to the LAN and DMZ from the WAN) is also limited to 200 kbps.
The ZyWALL applies this limit before sending the traffic to LAN or DMZ.
458
SIP: WAN to Any
Outbound: 200 Kbps
Inbound: 200 Kbps
Priority: 1
Max. B. U.
FTP: LAN1 to DMZ
Outbound: 50 Mbps
Inbound: 50 Mbps
Priority: 4
No Max. B. U.
ADSL
Up: 1 Mbps
Down 8 Mbps
ZyWALL USG 20/20W User's Guide