Default Mls Configuration - Cisco WS-C6506 Software Manual

Default MLS Configuration

When Host A initiates a file transfer to Host B, an IPX MLS entry for this flow is created (this entry is
the first item in the table shown in
Host B in the IPX MLS entry when the MSFC forwards the first packet from Host A through the switch
to Host B. The PFC uses this information to rewrite the subsequent packets from Host A to Host B.
Similarly, a separate IPX MLS entry is created in the MLS cache for the traffic from Host A to Host C,
and for the traffic from Host C to Host A. The destination VLAN is stored as part of each IPX MLS entry
so that the correct VLAN identifier is used when encapsulating traffic on the trunk links.
Figure 14-2
MAC = Aa
Host A
Data
Default MLS Configuration
Table 14-1
Table 14-1
Feature
IP MLS enable state
IP MLS aging time
IP MLS fast aging time
IP MLS fast aging-time packet threshold
Catalyst 6500 Series Switch Software Configuration Guide—Release 8.7
14-12
IPX MLS Example Topology
Source IPX Destination
Address IPX Address
01.Aa 03.Bb
01.Aa 02.Cc
02.Cc 01.Aa
MAC = Dd
MSFC
Net 1/Sales
01
01.Aa:02.Cc Aa:Dd
shows the default IP MLS configuration.
Default IP MLS Configuration
Figure 14-1). The PFC stores the MAC addresses of the MSFC and
Rewrite Src/Dst Destination
MAC Address VLAN
Dd:Bb Marketing
Dd:Cc Engineering
Dd:Aa Sales
Data
Default Value
Enabled
16 seconds
0 seconds (no fast aging)
0 packets
Chapter 14
MAC = Bb
Host B
MAC = Cc
Host C
01.Aa:02.Cc Dd:Cc
Configuring MLS
OL-8978-04