Cisco 7604 Configuration Manual page 898

Configuring Local SPAN, RSPAN, and ERSPAN
Command
Step 5
Router(config-mon-erspan-src)# source
{{ single_interface | interface_list |
interface_range | mixed_interface_list | single_vlan
| vlan_list | vlan_range | mixed_vlan_list } [rx | tx
| both]}
Step 6
Router(config-mon-erspan-src)# filter single_vlan |
vlan_list | vlan_range | mixed_vlan_list
Step 7
Router(config-mon-erspan-src)# destination
Step 8
Router(config-mon-erspan-src-dst)# ip address
ip_address
Step 9
Router(config-mon-erspan-src-dst)# erspan-id
ERSPAN_flow_id
Step 10
Router(config-mon-erspan-src-dst)# origin ip address
ip_address [force]
Step 11
Router(config-mon-erspan-src-dst)# ip ttl ttl_value
Step 12
Router(config-mon-erspan-src-dst)# ip prec ipp_value
Step 13
Router(config-mon-erspan-src-dst)# ip dscp
dscp_value
Step 14
Router(config-mon-erspan-src-dst)# vrf vrf_name
Step 15
Router(config-mon-erspan-src-dst)# end
When configuring monitor sessions, note the following information:
•
•
•
Cisco 7600 Series Router Cisco IOS Software Configuration Guide, Release 12.2SX
52-20
session_description can be up to 240 characters and cannot contain special characters or spaces.
You can enter 240 characters after the description command.
Note
ERSPAN_source_span_session_number can range from 1 to 66.
single_interface is interface type slot/port; type is ethernet, fastethernet, gigabitethernet, or
tengigabitethernet.
Chapter 52 Configuring Local SPAN, RSPAN, and ERSPAN
Purpose
Associates the ERSPAN source session number with
the source ports or VLANs, and selects the traffic
direction to be monitored.
(Optional) Configures source VLAN filtering when
the ERSPAN source is a trunk port.
Enters ERSPAN source session destination
configuration mode.
Configures the ERSPAN flow destination IP address,
which must also be configured on an interface on the
destination router and be entered in the ERSPAN
destination session configuration (see the
"Configuring ERSPAN Destination Sessions" section
on page 52-22, Step 7).
Configures the ID number used by the source and
destination sessions to identify the ERSPAN traffic,
which must also be entered in the ERSPAN
destination session configuration (see the
"Configuring ERSPAN Destination Sessions" section
on page 52-22, Step 8).
Configures the IP address used as the source of the
ERSPAN traffic.
(Optional) Configures the IP time-to-live (TTL) value
of the packets in the ERSPAN traffic.
(Optional) Configures the IP precedence value of the
packets in the ERSPAN traffic.
(Optional) Configures the IP DSCP value of the
packets in the ERSPAN traffic.
(Optional) Configures the VRF name to use instead
of the global routing table.
Exits configuration mode.
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