Virtual Leased Line Services
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FD 100/320Gbps NT and FX NT IHub Services Guide
3HH-11985-AAAA-TQZZA Issue: 13
Figure 9 Epipe/VLL Service
4.2.2 Traffic Management Support
An aggregate egress rate limiter can be associated to an Epipe service. The rate
limiter applies to traffic associated to the service which egresses on regular ports
(network ports). Committed rate and peak rate are configured, optionally, committed
and peak burst size can be configured.
Ingress and egress network QoS policies are applied to an Epipe service with
respect to the Pseudo-Wire (PW). They apply respectively to traffic received on the
PW and to traffic sent in the PW.
An ingress QoS policy is applied to an E-pipe service with respect to traffic received
from the SAP.
A separate QoS policy is applied to self-generated traffic in the scope of an E-pipe
service.
4.2.3 Pseudo-Wire Redundancy
A Pseudo-Wire over MPLS is protected for failures in the network, by the virtue of the
MPLS tunnel adapting to the IGP topology. An MPLS tunnel is established along the
IGP shortest path. In case an LSR fails, the tunnel is broken and will be
re-established along the newest IGP shortest path.
Customer 1
Customer 2
Customer 2
Customer 1
EPIPE (VLL) Service 1
EPIPE (VLL) Service 2
IP/MPLS Network
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