Cisco 10008 - Manual (Page 29)

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Cisco 10008 Router Performance Routing Engine 3 Installation
OL-8544-01
Analyzing and Troubleshooting Packets
IPv6 Forwarding over MPLS
The Cisco 10008 router supports PXF–accelerated IPv6 packet forwarding over Multiprotocol Label
Switching (MPLS) on the PRE3. This feature is enabled by default.
Table 6 lists common IPv6 over MPLS commands. For detailed information about configuring IPv6,
refer to the Cisco 10000 Series Router Broadband Aggregation, Leased-Line, and MPLS Configuration
Guide .
Table 6 IPv6 Forwarding over MPLS Commands
Sample Case Study
For the purposes of this case study, assume that the following ACL is configured on the router’s
outbound serial 1/0/0 interface:
access-list 108 permit udp any host 10.68.1.10 range 0 5000 log
access-list 108 permit udp host 10.1.1.l0 range 0 5000 any log
A traffic simulator is used to send 100 UDP packets to the Cisco 10008 router with the source and
destination ports of the packets set to 6000. Packets arrive on the Gigabit Ethernet 2/0/0 interface and
are supposed to leave the router through the serial 1/0/0 interface.
Router# show pxf cpu subblocks Displays PXF CPU statistics for a bridged
subinterface (encapsulation type).
Router# show pxf cpu vcci Displays VCCI to interface mapping
information on the PXF CPU.
Command Purpose
Command Mode Purpose
Router(config)# ipv6
unicast-routing
Global configuration Enables the forwarding of IPv6
packets.
Router(config)# ipv6 cef Global configuration Enables Cisco Express
Forwarding for IPv6 (CEFv6).
Router(config)# ipv6 cef
distributed
Global configuration Enables distributed CEFv6
(dCEFv6) to process IPv6
packets from the Route
Processor (RP) to the line
cards.
Router(config-if)# ipv6
enable
Interface configuration Enables IPv6 processing on an
interface that has not been
configured with an explicit
IPv6 address.
Router(config-if)# ipv6
address
Interface configuration Configures an IPv6 address
based on an IPv6 general prefix
and enables IPv6 processing on
an interface,
Router# show pxf cpu ipv6 Privileged EXEC Displays PXF IPv6 statistics.