Procedure 14-9: Manage traffic expansion in TMPLS pseudowire encapsulation
Overview
Use this procedure as an aid in managing Ethernet packet bandwidth consumption on the VLNC42B.
Before you begin
Do the following:
-
Obtain the work instructions for this procedure.
-
Refer to Bandwidth calculations and rate shaping on T-MPLS NNIs for information regarding bandwidth expansion and rate-shape settings that may be required.
Step
The user can manage traffic expansion in several ways. The following steps are suggestions on how to manage that traffic.
1 |
If required, rate police the traffic entering the UNI ports to ensure that no more than 1 Gb/s of traffic attempts to flow out of the NNI port. From the Navigation menu, select QoS → ETS Flow Services → Traffic Descriptor Configuration to create/modify/delete the ETS Traffic Descriptors (TD). See Procedure 14-8: ETS flow services traffic descriptor configuration. Apply the TDs to the service using Procedure 10-1: Configure Virtual Private Wire Service (VPWS) in Chapter 10, ETS flow services. |
2 |
If required, set the VLNC42B internal rate shaper. From the Navigation menu, select QoS → Class of Service → Interface Configuration and enter the Interface Shaping Rate. See Table 14-3, Recommended rate shape settings. Reference: Procedure 14-7: Provision class of service. |
3 |
If required, disable the VLNC42B internal rate shaper and use Flow Control to manage the excess traffic. From the Navigation menu, select QoS → Class of Service → Interface Configuration and set the Interface Shaping Rate to 0 (zero). See Procedure 14-7: Provision class of service. From the Navigation menu, select Port → Ethernet Port → Configuration and Enable Flow Control Mode on both the UNI and NNI ports. Refer to Table 14-2, Flow control setting behavior for flow control behavior. End of steps |