3com 5500-ei pwr Installation Instruction

 

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Enter system view 

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Enter Ethernet interface view 

interface interface-type 
interface-number 

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Specify the current port as the 
fabric port of a switch 

port link-type xrn-fabric 

Required 

No port is specified as the 
fabric port by default. 

 

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Establishing an XRN system requires a high consistency of the configuration of each device. 

Hence, before you enable the fabric port, do not perform any configuration for the port, and do not 

configure some functions that affect the XRN for other ports or globally. Otherwise, you cannot 

enable the fabric port. For detailed restrictions refer to the error information output by devices. 

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After an XRN fabric is created, you are not recommended to enable the Burst function on any fabric 

device. For the introduction to the Burst function, refer to the QoS-QoS Profile part in this manual. 

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When you have enabled fabric port function for a fabric port group, if you need to change the fabric 

port group, you must disable the fabric function of the current fabric port group before you configure 

another group. Otherwise, the system will prompt that the current fabric port group is in use, you 

cannot change the fabric port group. 

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As shutting down a fabric port directly may cause the fabric to be split and error messages, do not 

perform such operations. 

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To split a fabric, you can simply remove the cables used to form the fabric or disable the fabric 

using the undo fabric-port enable command. 

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You can shut down/bring up a port after you disable the fabric feature on the port. 

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If you need to configure an XRN fabric as a DHCP server, DHCP relay or DHCP client, configure 

the UDP Helper function in the fabric at the same time to ensure that the client can successfully 

obtain an IP address. (Since this configuration can be automatically synchronized to the entire 

fabric, you can perform it on only one unit.) For the configuration of the UDP Helper function, refer 

to the UDP Helper part in this manual. 

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After you use the port link-type xrn-fabric command to specify a port as the fabric port, you 

cannot use the port link-type command to change the port to a port of other types. You must use 

the undo fabric-port command first to disable the fabric port function of the port to change the port 

type. 

 

When the devices in an XRN fabric are transmitting XRN data, to avoid it being sent to other non fabric 

ports, the data should be transmitted in a specified VLAN. You can specify the VLAN used to transmit 

XRN data. 

Follow these steps to specify the VLAN used to form an XRN fabric: 

Enter system view 

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