Egress Shaping for Fabric Extend Tunnels on Fabric IPsec Gateway

Table 1. Egress Tunnel Shaping product support

Feature

Product

Release introduced

Egress Shaper for Fabric Extend tunnels on Fabric IPsec Gateway virtual machine

5320 Series

Not Supported

5420 Series

Not Supported

5520 Series

Not Supported

5720 Series

Fabric Engine 8.7

Supported on 5720-24MXW and 5720-48MXW

7520 Series

Fabric Engine 8.10

7720 Series

Fabric Engine 8.10

VSP 4900 Series

VOSS 8.3.1

Supported on VSP4900-12MXU-12XE and VSP4900-24XE

VSP 7400 Series

VOSS 8.3.1

You can configure the egress shaping rate to limit egress bandwidth for tunnels on the Fabric IPsec Gateway Virtual Machine (VM).

Egress Tunnel Shaping shapes unicast, multicast, and unknown unicast egress traffic on the tunnel.

Eight traffic queues are created for the tunnel traffic when a new shaper is configured. Packets are mapped to any of these queues based on the internal Class of Service (CoS) of the packets. When multiple tunnels use the common shaper value, an internally unique shaper is associated for each tunnel. The following table shows the default minimum weight for each queue.

Queue Default Minimum Weight

0

5

1

20

2

30

3

40

4

50

5

50

6

Rate limited to 50% of configured shaper rate

7

Rate limited to 5% of configured shaper rate

Queues 6 and 7 are rate limited and have a higher priority. The maximum traffic allowed out of queue 6 and queue 7 would be shape rate/2 (50% bandwidth) and shape rate/20 (5% bandwidth).

Considerations

Consider the following when you configure the egress shaper rate: