IES for Customer Traffic
Page 336 7705 SAR OS Services Guide
If BFD packets are not received in the configured amount of time, the associated static route
is declared “not active”, causing a reroute to an alternative path, if any.
The 7705 SAR also supports Internet Control Message Protocol (ICMP). ICMP is a message
control and error reporting protocol that also provides information relevant to IP packet
processing.
SAPs
Encapsulations
The following SAP encapsulations are supported on the 7705 SAR Internet Enhanced
Service:
• Ethernet null
• Ethernet dot1q
• PPP/MLPPP/MC-MLPPP
QoS Policies
When applied to an Internet Enhanced Service, service ingress QoS policies only create the
unicast queues defined in the policy.
Service egress QoS policies function in the same way as Ethernet and IP pseudowire
services, where class-based queues are created based on the QoS policy. Multiple queues are
supported. Refer to the 7705 SAR OS Quality of Service Guide, “Creating a Service Egress
QoS Policy”.
Both Layer 2 and Layer 3 match criteria can be used in the QoS policies for traffic
classification in an IES.
Note: Link failures detected by BFD will disable the IP interface.
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