Which two statements about SAN port channels configured on Cisco Nexus 5000 Series switches are true？ （）

A. The bring up protocol automatically detects and overrides any misconfiguration.
B. You can manually configure channel groups， or they can be automatically created.
Changes in configuration to the SAN port channel interface must also be made to all members of the channel group.
D. The port channel protocol uses the exchange fabric parameters command to communicate across peer ports in an IS
E. The port channel protocol ensures that a set of ports is eligible to be part of the same SAN port channel.