D-Link DFL-860E User Manual for DFL-260E - Page 504
More Pipe Examples, The pipes required will
View all D-Link DFL-860E manuals
Add to My Manuals
Save this manual to your list of manuals |
Page 504 highlights
10.1.10. More Pipe Examples Chapter 10. Traffic Management reasonable for a VPN tunnel where the underlying physical connection capacity is 2 Mbps. It is also important to remember to insert into the pipe all non-VPN traffic using the same physical link. The pipe chaining can be used as a solution to the problem of VPN overhead. A limit which allows for this overhead is placed on the VPN tunnel traffic and non-VPN traffic is inserted into a pipe that matches the speed of the physical link. To do this we first create separate pipes for the outgoing traffic and the incoming traffic. VoIP traffic will be sent over a VPN tunnel that will have a high priority. All other traffic will be sent at the best effort priority (see above for an explanation of this term). Again, we will assume a 2/2 Mbps symmetric link. The pipes required will be: • vpn-in • Priority 6: VoIP 500 kpbs • Priority 0: Best effort Total: 1700 • vpn-out • Priority 6: VoIP 500 kpbs • Priority 0: Best effort Total: 1700 • in-pipe • Priority 6: VoIP 500 kpbs Total: 2000 • out-pipe • Priority 6: VoIP 500 kpbs Total: 2000 The following pipe rules are then needed to force traffic into the correct pipes and precedence levels: Rule Name vpn_voip_out vpn_out vpn_voip_in vpn_in out in Forward Return Src Pipes Pipes Int vpn-out vpn-in lan out-pipe in-pipe vpn-out vpn-in lan out-pipe in-pipe vpn-in vpn-out vpn in-pipe out-pipe vpn-in vpn-out vpn in-pipe out-pipe out-pipe in-pipe lan in-pipe out-pipe wan Source Network lannet lannet vpn_remote_net vpn_remote_net lannet all-nets Dest Int vpn vpn lan lan wan lan Destination Network vpn_remote_net vpn_remote_net lannet lannet all-nets lannet Selected Prece Service dence H323 6 All 0 H323 6 All 0 All 0 All 0 With this setup, all VPN traffic is limited to 1700 kbps, the total traffic is limited to 2000 kbps and 504