R3303-HP HSR6800 Routers MPLS Configuration Guide

173
Ste
p
Command Remarks
1. Enter system view.
system-view N/A
2. Create an MPLS L2VPN and
enter MPLS L2VPN view.
mpls l2vpn vpn-name
[ encapsulation { atm-aal5 |
ethernet | fr | hdlc | ppp | vlan }
[ control-word |
no-control-word ] ]
You must create an L2VPN on the
PE for each VPN where a directly
connected CE resides. When
creating an L2VPN, you must
specify a VC type matching that of
the AC link.
3. Configure an RD for the MPLS
L2VPN.
route-distinguisher
route-distinguisher
Once configured, an RD cannot be
changed, unless you delete the
L2VPN and then recreate it.
For more information about an RD,
see "Configuring MPLS L3VPN."
4. Configure one or more route
targets for the MPLS L2VPN.
vpn-target vpn-target&<1-16>
[ both | export-extcommunity |
import-extcommunity ]
N/A
5. Set the MTU for the MPLS
L2VPN.
mtu mtu
Optional.
By default, the MTU of an MPLS
L2VPN is 1500 bytes.
The mtu command affects only
parameter negotiations, if any. It
does not affect data forwarding.
HP recommends not using this
command.
Creating a CE connection
Configuration parameters and guidelines
• id ce-id: Specifies the CE ID of a local CE connected to the PE.
• range ce-range: Specifies the CE range—the maximum number of CEs to which the specified CE
can connect.
You can configure a CE range greater than what is required based on your estimate of future VPN
expansion. This can reduce configuration workload required when CEs are added into the VPN in
future.
• default-offset default-offset: Specifies the initial CE ID, 0 or 1. 0 indicates CEs in the VPN are
numbered from 0. 1 indicates CEs in the VPN are numbered from 1.
This parameter and the CE range together determine the label blocks that the PE assigns to CEs:
{ When you first execute the ce command and specify the CE range as ce-range1, the PE assigns
the first label block. The LR of the label block equals ce-range1. If the default-offset is 0, the LO
of the label block is 0. Otherwise, the LO is 1.
{ When you execute the ce command for the second time and specify the CE range as ce-range2
(greater than ce-range1), the PE assigns the second label block. The LR of the second label
block = ce-range2–ce-range1. If the default-offset is 0, the LO of the label block is ce-range1.
Otherwise, the LO is ce-range1+1.
The subsequent label blocks are calculated in the same way. For example, if you execute the
following commands on the PE in order, the PE assigns three label blocks. They are LB1/0/10,