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l  ÉèÖø÷×°±¸Ö®¼äÈý²ã·Óɿɴï¡£¡£¡£¡£¡£

l  ÉèÖÃDeviceBΪԴװ±¸¡£¡£¡£¡£¡£GigabitEthernet 0/1£¬ £¬£¬£¬£¬GigabitEthernet 0/2¾ùΪԴ¶Ë¿Ú£¬ £¬£¬£¬£¬¼à¿ØGigabitEthernet 0/1µÄË«ÏòÊý¾Ý±¨ÎÄ£¬ £¬£¬£¬£¬¹ØÓÚGigabitEthernet 0/2µÄ±¨ÎÄ£¬ £¬£¬£¬£¬½ö¾µÏñÄ¿µÄIPΪ2.1.1.1µÄ±¨ÎÄ£¬ £¬£¬£¬£¬GigabitEthernet 0/3Ϊ¾µÏñ±¨Îijö¿Ú¡£¡£¡£¡£¡£

l  ÉèÖþµÏñ±¨ÎĵIJÉÑùÂÊΪ1000¡£¡£¡£¡£¡£

4.    ÉèÖð취

ÉèÖÃDeviceBµÄµØµã¡£¡£¡£¡£¡£

DeviceB> enable

DeviceB# configure terminal

DeviceB(config)# interface gigabitethernet 0/1

DeviceB(config-if-GigabitEthernet 0/1)# ip address 1.1.1.1 255.255.255.0

DeviceB(config-if-GigabitEthernet 0/1)# exit

DeviceB(config)# interface gigabitethernet 0/2

DeviceB(config-if-GigabitEthernet 0/1)# ip address 2.1.1.1 255.255.255.0

DeviceB(config-if-GigabitEthernet 0/1)# exit

DeviceB(config)# interface gigabitethernet 0/3

DeviceB(config-if-GigabitEthernet 0/1)# ip address 13.1.1.1 255.255.255.0

DeviceB(config-if-GigabitEthernet 0/1)# exit

ÉèÖÃDeviceAµÄµØµã¡£¡£¡£¡£¡£

DeviceA> enable

DeviceA# configure terminal

DeviceA(config)# interface gigabitethernet 0/1

DeviceA(config-if-GigabitEthernet 0/1)# ip address 1.1.1.2 255.255.255.0

DeviceA(config-if-GigabitEthernet 0/1)# exit

ÉèÖÃDeviceCµØµã¡£¡£¡£¡£¡£

DeviceC> enable

DeviceC# configure terminal

DeviceC(config)# interface gigabitethernet 0/1

DeviceC(config-if-GigabitEthernet 0/1)# ip address 2.1.1.2 255.255.255.0

DeviceC(config-if-GigabitEthernet 0/1)# exit

ÔÚDeviceBÉÏÉèÖÃACL¡£¡£¡£¡£¡£

DeviceB(config)#access-list 1 permit host 1.1.1.1

½¨ÉèERSPAN Session 1£¬ £¬£¬£¬£¬ÉèÖÃΪԴװ±¸£¬ £¬£¬£¬£¬²¢ÉèÖö˿ÚGigabitEthernet 0/1ΪԴ¶Ë¿Ú£¬ £¬£¬£¬£¬¾µÏñË«ÏòÊý¾ÝÁ÷£¬ £¬£¬£¬£¬¶Ë¿ÚGigabitEthernet 0/2ҲΪԴ¶Ë¿Ú£¬ £¬£¬£¬£¬½ö¾ÙÐÐÄ¿µÄµØµãΪ1.1.1.1µÄ±¨ÎÄ¡£¡£¡£¡£¡£

DeviceB(config)# monitor session 1 erspan-source

DeviceB(config-mon-erspan-src)# source interface gigabitethernet 0/1 both

DeviceB(config-mon-erspan-src)# source interface gigabitethernet 0/2 rx acl acl1

DeviceB(config-mon-erspan-src)# origin ip address 10.1.1.2

DeviceB(config-mon-erspan-src)# destination ip address 3.1.1.2

¿ªÆô¾µÏñ±¨ÎĽÓÄɹ¦Ð§²¢ÉèÖòÉÑùÂÊΪ1000¡£¡£¡£¡£¡£

DeviceB(config-mon-erspan-src)# sample enable

DeviceB(config-mon-erspan-src)# sample rate 1000

5.    ÑéÖ¤ÉèÖÃЧ¹û

ÑéÖ¤DeviceBÓëDeviceAÖ®¼äÈý²ã¿Éͨ¡£¡£¡£¡£¡£

DeviceB# ping 1.1.1.2

Sending 5, 100-byte ICMP Echoes to 1.1.1.2, timeout is 2 seconds:

¡¡< press Ctrl+C to break >

!!!!!

Success rate is 100 percent (5/5), round-trip min/avg/max = 2/3/8 ms.

ÑéÖ¤DeviceBÓëDeviceCÖ®¼äÈý²ã¿Éͨ¡£¡£¡£¡£¡£

DeviceB# ping 2.1.1.2

Sending 5, 100-byte ICMP Echoes to 2.1.1.2, timeout is 2 seconds:

¡¡< press Ctrl+C to break >

!!!!!

Success rate is 100 percent (5/5), round-trip min/avg/max = 2/3/8 ms.

ÑéÖ¤DeviceBÓëÍøÂçÆÊÎöÒÇÖ®¼äÈý²ã¿Éͨ¡£¡£¡£¡£¡£

DeviceB# ping 3.1.1.2

Sending 5, 100-byte ICMP Echoes to 3.1.1.2, timeout is 2 seconds:

¡¡< press Ctrl+C to break >

!!!!!

Success rate is 100 percent (5/5), round-trip min/avg/max = 2/3/8 ms.

ͨ¹ýshow access-listsÏÂÁîÉó²éACLÉèÖÃÀֳɡ£¡£¡£¡£¡£

DeviceB# show access-lists

 

ip access-list standard 1

 10 permit host 1.1.1.1

ͨ¹ýshow monitorÏÂÁîÉó²éÉèÖÃЧ¹û£¬ £¬£¬£¬£¬ERSPAN»á»°´¦ÓÚActive״̬¡£¡£¡£¡£¡£

DeviceB# show monitor

sess-num: 1

span-type: ERSPAN_SOURCE

src-intf:

¡¡GigabitEthernet 0/1¡¡¡¡¡¡¡¡ frame-type: Both¡¡¡¡¡¡¡¡TX status: Active¡¡ RX status: Active¡¡

src-intf:

¡¡GigabitEthernet 0/2¡¡¡¡¡¡¡¡ frame-type: RX Only¡¡¡¡ Rx acl id: 1¡¡¡¡¡¡

status: Active

original ip address: 2.1.1.2

destination ip address: 3.1.1.2

ip ttl: 64

ip dscp: 0

sample rate: 1000

vrf: default

6.    ÉèÖÃÎļþ

l  DeviceAµÄÉèÖÃÎļþ

hostname DeviceA

!

interface GigabitEthernet 0/1

 ip address 1.1.1.2 255.255.255.0

!

end

l  DeviceCµÄÉèÖÃÎļþ

hostname DeviceC

!

interface GigabitEthernet 0/1

 ip address 2.1.1.2 255.255.255.0

!

end

l  DeviceBµÄÉèÖÃÎļþ

hostname DeviceB

!

ip access-list standard 1

 10 permit host 1.1.1.1

!

interface GigabitEthernet 0/1

 ip address 1.1.1.1 255.255.255.0

!

interface GigabitEthernet 0/2

 ip address 2.1.1.1 255.255.255.0

!

interface GigabitEthernet 0/3

 ip address 3.1.1.1 255.255.255.0

!

monitor session 1 erspan-source

 source interface gigabitEthernet 0/1 both

 source interface gigabitEthernet 0/2 rx acl acl1

 origin ip address 10.1.1.2

 destination ip address 3.1.1.2

 sample enable

 sample rate 1000

!

end

7.    ³£¼û¹ýʧ

l  ÉèÖÃERSPAN¾µÏñµÄ»á»°IDÒѾ­±»ÉèÖÃÁËRSPAN»òLOCAL SPAN¡£¡£¡£¡£¡£

l  ´ÓÔ´×°±¸µ½Ä¿µÄ×°±¸µÄÈý²ã·ÓÉÎÞ·¨»¥Í¨¡£¡£¡£¡£¡£

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