Packet Data Network (Pdn) Interface Rules - Cisco ASR 5000 Series Administration Manual

Packet Data Network (PDN) Interface Rules

• A single physical port can support multiple logical interfaces when you configure VLAN tags for that
• Assign all logical interfaces a valid IP address and subnet.
• You can configure a logical interface in only one context, but you can configure multiple interfaces (up
• You can apply a maximum of 256 access control list (ACL) rules to a single logical interface.
• All ports are identified by their <slot#>/<port#>.
• Each physical port for subscriber traffic on an MIO/UMIO/MIO2 card may contain up to a maximum
• A logical interface is limited to using a single VLAN on a single physical port, identified by its
Packet Data Network (PDN) Interface Rules
The following engineering rules apply to the interface to the packet data network (PDN):
• Configure the logical interfaces used to facilitate the PDN interface within the egress context.
• The default is to use a single interface within the egress context to facilitate the PDN interface.
• You can configure multiple interfaces in the egress context by using static routes or dynamic routing
• You may also configure next-hop default gateways.
Context Rules
• A maximum of 63 contexts may be configured per chassis.Enabling demux functions on an MIO card
• Interfaces per Context
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physical port. You can use VLAN tagging to bind a single physical port to multiple logical interfaces
that reside in different contexts.
• Give each logical interface within a context a unique IP address(es). Logical interfaces in different
contexts can have the same IP address(es).
• If multi-homing is supported on the network, you can assign all logical interfaces a single primary
IP address and up to 16 secondary IP addresses.
to 512) in a single context.
of 1,024 VLAN tags.
<card#/slot#/port#>.
protocols.
reduces the maximum number of contexts to 10.
◦ Prior to Release 15.0: Up to 16 interfaces can be configured within a single context.
◦ For Release 15.0 and higher: With the Demux MIO/UMIO/MIO2 feature enabled, up to 64
interfaces can be configured within a single context.
◦ 512 Ethernet+PPP+tunnel interfaces
◦ 32 ipv6ip tunnel interfaces
◦ 511 GRE tunnels (2,048 GRE tunnels per chassis)
Engineering Rules