Cisco Systems OL-4344-01 manual Service Provider Network for Vlan ID Management

Chapter 1 About Cisco IP Solution Center

Overview of ISC

•VLAN ID Management: ISC allocates VLAN IDs per customer and per Ethernet Service deployed. The service provider can track per Access Domain a particular allocated VLAN ID (per service or per customer or per Access Domain).

ISC keeps track of the VLANs allocated and gives detailed usage information of the VLAN allocated per service, per customer, or per Access Domain.

Access Domain: The Layer 2 Ethernet switching domain attached to a PE defines an access domain. All the switches attached to the PE-POP belong to the access domain (as illustrated in Figure 1-3 on page 1-5). This notion enables the network operator to tie multiple VLAN pools to a single Access Domain, and also allows redundancy with dual PEs in a single Access Domain.

For illustration purpose, let’s assume that a Service Provider has a network such as the one illustrated in Figure 1-2. A customer has two sites (Chicago and New York), and would like to get an Ethernet Wire Service between the two sites.

Figure 1-2 Service Provider Network for VLAN ID Management

Service Provider

network

IP Solution Center

Network Management

subnet

Management PE

Management VPN	Management CE
PE

89997

	Service provider
	CLE-1	MPLS core
		PE
	PE
CLE-2	PE-POP 1	PE-POP 2	CE 2

New York

CE 2

Chicago

1.If the network operator has chosen the Auto-Pick VLAN ID option in the service policy (see the “PE Interface Information” section on page 4-11), the network operator must assign an access domain and a VLAN pool for a given PE-POP.

This automatically gives ISC the range of VLAN IDs that are attached to the access domain.

Figure 1-3shows the access domain assigned, with PE-POP 1, CLE 1, and CLE 2 defined within the access domain.

Cisco IP Solution Center, 3.0: MPLS VPN Management User Guide, 3.0

1-4 OL-4344-01