Table of Contents
Advertisement
Chapter 13
MPLS/VPN Support
•
These two modes can function simultaneously; therefore selected PE routers can be configured statically,
while the rest are resolved dynamically
For more information regarding the MAC resolver, refer to the Cisco Service Control Engine Software
Configuration Guide.
Options
The following options are available:
•
•
•
How to Add a Static IP Address
From the SCE(config if)# prompt, type mac-resolver arp ip_address [vlan vlan_tag] mac_address and
Step 1
press Enter.
Adds the specified IP address and MAC address pair to the MAC resolver database.
How to Remove a Static IP Address
From the SCE(config if)# prompt, type no mac-resolver arp ip_address [vlan vlan_tag] and press
Step 1
Enter.
Removes the specified IP address and MAC address pair from the MAC resolver database.
Monitoring the MAC Resolver
Use this command to see a listing of all IP addresses and corresponding MAC addresses currently
registered in the MAC resolver database.
Step 1
From the SCE# prompt, type show interface linecard 0 mac-resolver arp and press Enter.
Displays a listing of all IP addresses and corresponding MAC addresses currently registered in the MAC
resolver database.
OL-7827-12
Static mode
In this mode, the MAC address of each PE router must be explicitly defined by the user.
Benefit: no initial delay until IP addresses converge
–
Drawback: PE interface is not automatically updated via ARP updates; therefore it doesn't
–
automatically support cases where the MAC address changes on the fly.
However, for statically configured MAC addresses, a user log message appears when the system
detects that the MAC address changed. This can be used by the operator to configure the new
address.
ip address — The IP address entry to be added to or removed from the database.
vlan tag — VLAN tag that identifies the VLAN that carries this IP address (if applicable).
mac address — MAC address assigned to the IP address, in xxxx.xxxx.xxxx format.
Cisco SCE 2000 and SCE 1000 Software Configuration Guide
Configuring MPLS/VPN Support
13-15
Advertisement
Table of Contents
