Interface And Port Rules; S1-U/S11 Interface Rules; S5/S8 Interface Rules; Mag To Lma Rules - Cisco ASR 5000 Series Administration Manual

▀ Interface and Port Rules

Interface and Port Rules
The rules discussed in this section pertain to the Ethernet 10/100 line card, the Ethernet 1000 line card and the four-port
Quad Gig-E line card and the type of interfaces they facilitate, regardless of the application.

S1-U/S11 Interface Rules

The following engineering rules apply to the S1-U0/S11 interface:
An S1-U0/S11 interface is created once the IP address of a logical interface is bound to an S-GW service.
The logical interface(s) that will be used to facilitate the S1-U0/S11 interface(s) must be configured within an
"ingress" context.
S-GW services must be configured within an "ingress" context.
At least one S-GW service must be bound to each interface, however, multiple S-GW services can be bound to a
single interface if secondary addresses are assigned to the interface.
Depending on the services offered to the subscriber, the number of sessions facilitated by the S1-U0/S11
interface can be limited.

S5/S8 Interface Rules

This section describes the engineering rules for the S5 interface for communications between the Mobility Access
Gateway (MAG) service residing on the S-GW and the Local Mobility Anchor (LMA) service residing on the P-GW.

MAG to LMA Rules

The following engineering rules apply to the S5/S8 interface from the MAG service to the LMA service residing on the
P-GW:
An S5/S8 interface is created once the IP address of a logical interface is bound to an MAG service.
The logical interface(s) that will be used to facilitate the S5/S8 interface(s) must be configured within the egress
context.
MAG services must be configured within the egress context.
MAG services must be associated with an S-GW service.
▄ Cisco ASR 5000 Series Serving Gateway Administration Guide
S-GW Engineering Rules
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