H3C Technologies H3C S5820X Series Switches - Manual (Page 8)

3-1
3
Restrictions and Descriptions
Support for software functions on the S5800 series and S5820X series is different. Note the differences
mentioned in the following table when you configure these functions in a mixed IRF:
Table 3-1 Function matrix for the S5800 and S5820X
Function S5800 series S5820X series Description
IP NetStream Supported Not supported
NetStream filter Supported Not supported
You can configure NetStream only on ports
of the S5800 series. If you configure it on a
port of an S5820X series, the system will
return a message saying that the feature is
not supported.
Cut-through
forwarding
Not supported Supported
This function is based on the global
configuration and is only effective on the
S5820X series.
Note that if you execute the cut-through
command on the S5820X series, the Layer 3
forwarding and ACL functions will become
ineffective; therefore, you are recommended
to not use this function in a mixed IRF.
Priority-based
flow control
Not supported Supported
You can configure this function only on the
10 GE ports of the S5820X series, and the
GE ports on the S5820X or ports on the
S5800 series do not support this function.
Hierarchical CAR Supported Not supported
Hierarchical CAR is configured globally. You
can apply a QoS policy containing
hierarchical CAR on the S5800 series
instead of the S5820X series.
For functions supported by both the S5800 series and the S5820X series, the implemented capabilities
are different. Note the differences mentioned in the following table when you configure these functions
in a mixed IRF:
Table 3-2 Function capability matrix of the S5800 and S5820X series
Functions S5800 series S5820X series Mixed IRF of S5800 and S5820X
Inbound: 8K Inbound: 2K
Number of ACL
entries
Outbound: 1K Outbound: 512
When you apply QoS policies globally or for
specific VLANs, the application may be
successful on the S5800 series but may fail
on the S5820X series due to the differences
of the implemented capabilities.
You can use the display qos policy global
or display qos vlan-policy command to
display the QoS policy configuration
information and check whether the policy is
applied successfully on a member device.