CCIE R&S Written 1.50 Implement SPAN, RSPAN and Flow Control

SPAN

Configuration of SPAN as follows:-

Single port source:
(conf)#monitor session 1 source interface fastethernet 0/1  both|rx|tx
Range of ports source:
(conf)#monitor session 1 source interface fastethernet 0/1  – 2 both|rx|tx
Non sequential list of ports source:
(conf)#monitor session 1 source interface fastethernet 0/1 , fastethernet 0/4  both|rx|tx

(conf)#monitor session 1 destination interface fastethernet 0/2

RSPAN

Similar to SPAN except vlan’s are used for the destination on the source switch and vlans are used as the source on the destination switch.
To configure an RSPAN source session, configure a source with an RSPAN VLAN as the destination. To configure an RSPAN destination session, configure an RSPAN VLAN as the source and a port as the destination.

(config)#vlan 998
(config-vlan)#name RSPAN
(config-vlan)#remote-span
(config-vlan)#exit

On the source switch

(config)#monitor session 1 source interface fastethernet 0/1
(config)#monitor session 1 destination remote vlan 998

On the remote switch

(config)#monitor session 1 source remote vlan 998
(config)#monitor session 1 destination interface fastethernet 0/12 {encapsulation|ingress}

Flow Control

Devin’s post on Flow-Control here

Configuring flow control is completed in interface config mode. In the lab, 3560’s are used and flowcontrol ‘send’ is unsupported using 12.44(SE6), so it’s only receive that can be configured.

(config-if)#flowcontrol receive desired|on|off

To view flow control on your switch:

#show flowcontrol

 

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