Configuration restrictions and guidelines
When you configure an HDLC link bundle interface, follow these restrictions and guidelines:
The minimum number of Selected interfaces required cannot be greater than the maximum number of Selected interfaces allowed in the HDLC link bundle.
As a best practice to guarantee correct traffic transmission, configure each of the following parameters the same at both ends of an HDLC link bundle:
Minimum number of Selected interfaces required for bringing up the HDLC link bundle.
Maximum number of Selected interfaces allowed in the HDLC link bundle.
Minimum bandwidth required for bringing up the HDLC link bundle.
After the HDLC link bundle configuration is complete, the state of each member interface is determined again if you modify any of the following parameters:
Minimum number of Selected interfaces required for bringing up the HDLC link bundle.
Maximum number of Selected interfaces allowed in the HDLC link bundle.
Minimum bandwidth required for bringing up the HDLC link bundle.
As a best practice, set the same load balancing mode at both ends of an HDLC link bundle.