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Cisco Catalyst Blade Switch 3030 Command Reference
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Chapter 2 Cisco Catalyst Blade Switch 3030 Cisco IOS Commands
monitor session
monitor session
Use the
monitor session
global configuration command to start a new Switched Port Analyzer (SPAN)
session or Remote SPAN (RSPAN) source or destination session, to enable ingress traffic on the
destination port for a network security device (such as a Cisco IDS Sensor Appliance), to add or delete
interfaces or VLANs to or from an existing SPAN or RSPAN session, and to limit (filter) SPAN source
traffic to specific VLANs. Use the
no
form of this command to remove the SPAN or RSPAN session or
to remove source or destination interfaces or filters from the SPAN or RSPAN session. For destination
interfaces, the encapsulation
options are ignored with the
no
form of the command.
monitor session
session_number
destination
{
interface
interface-id
[, | -] [
encapsulation
replicate
] [
ingress
{
dot1q vlan
vlan-id
|
isl
|
untagged vlan
vlan-id
|
vlan
vlan-id
}]} | {
remote
vlan
vlan-id
}
monitor session
session_number
filter vlan
vlan-id
[, | -]
monitor session
session_number
source
{
interface
interface-id
[, | -] [
both
|
rx
|
tx
]} | {
vlan
vlan-id
[, | -] [
both
|
rx
|
tx
]}| {
remote vlan
vlan-id
}
no monitor session
{
session_number
|
all
|
local
|
remote
}
no monitor session
session_number
destination
{
interface
interface-id
[, | -] [
encapsulation
replicate]
[
ingress
{
dot1q vlan
vlan-id
|
isl
|
untagged vlan
vlan-id
|
vlan
vlan-id
}]} | {
remote
vlan
vlan-id
}
no monitor session
session_number
filter vlan
vlan-id
[, | -]
no monitor session
session_number
source
{
interface
interface-id
[, | -] [
both
|
rx
|
tx
]}
| {
vlan
vlan-id
[, | -] [
both
|
rx
|
tx
]} | {
remote vlan
vlan-id
}
Syntax Description
session_number
Specify the session number identified with the SPAN or RSPAN session.
The range is 1 to 66.
destination
Specify the SPAN or RSPAN destination. A destination must be a physical
port.
interface
interface-id
Specify the destination or source interface for a SPAN or RSPAN session.
Valid interfaces are physical ports (including type and port number). For
source interface
,
port channel
is also a valid interface type, and the valid
range is 1 to 48.
encapsulation replicate
(Optional) Specify that the destination interface replicates the source
interface encapsulation method. If not selected, the default is to send
packets in native form (untagged).
These keywords are valid only for local SPAN. For RSPAN, the RSPAN
VLAN ID overwrites the original VLAN ID; therefore, packets are always
sent untagged.
ingress
(Optional) Enable ingress traffic forwarding.
dot1q vlan
vlan-id
Accept incoming packets with IEEE 802.1Q encapsulation with the
specified VLAN as the default VLAN.
isl
Specify ingress forwarding using ISL encapsulation.
