我在二层交换模块的四个口都不能配置Portchannel，在8200的接口上可以配置，请问在哪可以看到模块支持的命令？
CN-SH-BRCH-INTERNET-(config-if)#channel-group ?
% Unrecognized command
CN-SH-BRCH-INTERNET-(config-if)#?
Interface configuration commands:
aaa Authentication, Authorization and Accounting.
access-session Access Session specific Interface Configuration Commands
analysis-module Configure NAM on the interface
apollo Apollo interface subcommands
arp Set arp type (arpa, probe, snap), timeout, log options or
packet priority
backup Modify backup parameters
bandwidth Set bandwidth informational parameter
bfd BFD interface configuration commands
bgp-policy Apply policy propagated by bgp community string
carrier-delay Specify delay for interface transitions
cdp CDP interface subcommands
cmns OSI CMNS
crypto Encryption/Decryption commands
ctr Cloud Tunnel Relay
cxsc Configure CXSC related features
dampening Enable event dampening
dapr Specify dapr interface
decnet Interface DECnet config commands
default Set a command to its defaults
delay Specify interface throughput delay
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