Extreme Networks BlackDiamond 6800 MPLS, Installation And User Manual

Page: 136 / 176

8-2 MPLS Module Installation and User Guide
Configuring Destination-Sensitive Accounting
and the column index being a bin number. Thus, when an IP frame is forwarded, the
input VLAN ID selects the row and the bin number from the forwarding database entry
selects the column. The use of input VLAN ID enables billing statistics to be maintained
on a per customer basis where the VLAN ID identifies the customer.
Basic Accounting Configuration Information
This section uses several typical usage and configuration schemes to provide a brief
overview of the destination-sensitive accounting configuration process as a general
context for the detailed command description sections that follow.
In the most basic terms, to enable the accounting function, you must enable the
accounting feature, create a customer VLAN ID, enable IP forwarding, and configure
the accounting bin using the route map feature.
You use a special set of commands to configure the MPLS module to initiate the
accounting function. Table 8-1 describes the commands added to the ExtremeWare
software for configuring accounting.
Table 8-1: Accounting Commands
Command Description of Change
clear accounting counters Clears (zeroes out) all of the billing statistics.
config route-map <route-map>
<sequence_number> [add |
delete] set accounting-index 1
value <bin_number> Configures the accounting bin number to be associated with
the specified route map entry. The accounting-index value is
always set to 1 for destination-sensitive accounting.
config iproute-map [ospf-intra |
ospf-inter | ospf-extern1 |
ospf-extern2 | ospf | rip | static |
e-bgp | i-bgp | direct]
<route-map> | none Configures how the specified route map is to be applied to
IP routing tables. If none is selected, it disassociates the
route map from the routing protocol.
disable accounting Disables the destination-sensitive accounting function.
enable accounting Enables the destination-sensitive accounting function.
show accounting {<vlan>} Displays accounting statistics for the specified VLAN. If no
VLAN is specified, statistics for all VLANs are displayed.