R3102-R3103-HP 6600/HSR6600 Routers Layer 2 - WAN Configuration Guide

106
Ste
p
Command Remarks
9. Specify the MTU size on the HDLC link
bundle interface.
mtu size
Optional.
1500 bytes by default.
The MTU size specified here
affects the fragmentation
and reassembly of IP
packets. Use this command
to set a proper MTU size
according to your network
conditions.
Make sure the largest MTU
supported by the member
interface is no less than the
MTU size configured for the
HDLC link bundle interface.
Otherwise, traffic might fail
to be forwarded.
10. Restore the default settings for the HDLC link
bundle interface.
default Optional.
11. Enable the HDLC link bundle interface
undo shutdown
Optional.
Enabled by default.
Enabling/disabling an
HDLC link bundle interface
does not enable or disable
any member interface in the
HDLC link bundle but can
affect the selected states of
the member interfaces.
Assigning an interface to an HDLC link bundle
When you assign an interface to an HDLC link bundle, follow these guidelines:
• You cannot assign interfaces configured with the following features to an HDLC link bundle: IPv4
addresses, IPv4 unnumbered, IPv6 addresses, URPF, NetStream, and IPv6 NetStream. After an
interface is assigned to an HDLC link bundle, you cannot configure any of these features on the
interface either.
• An interface can belong to only one HDLC link bundle at any point in time. To assign an HDLC link
bundle member interface to another HDLC link bundle, remove the interface from the current HDLC
link bundle first.
• The link layer protocol of an interface to be assigned to an HDLC link bundle can only be HDLC.
After the interface is assigned to the HDLC link bundle, you are not allowed to change its link layer
protocol.
• You can assign interfaces to a nonexistent HDLC link bundle as members.
• You can assign interfaces on different cards to the same HDLC link bundle.
• If you change the bundling priority of a member interface after the HDLC link bundle configuration
is finished, the device will determine the state of each member interface in the HDLC link bundle
again.