HP PROCURVE 6600 Manual de usuario descargar pdf (Pagina 651)

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101

Monitoring and Analyzing Switch Operation

Traffic Mirroring

Depending on how many sessions are configured on the

switch, you can use the same command to configure a MAC

address as mirroring criteria in up to four sessions. To

identify a session, you can enter either its name or number;

for example: mirror 1 2 3 traffsrc4

Refer to “Mirroring-Source Restrictions” on page B-56 for

the restrictions on how many mirroring source criteria you

can configure in the same session.

< 1 - 4 >: Specifies a mirroring session by number (1

to 4), for which the configured MAC address is used

to select and mirror inbound and/or outbound traffic.

[name < name-str >]: (Optional) Specifies a mirroring

session by name (alphanumeric string), for which the

configured MAC address is used to select and mirror

inbound and/or outbound traffic. For a remote

mirroring session, you must configure the same

session name on both the source and destination

switch.

Restrictions The following restrictions apply to MAC-based mirroring:

■ Up to 320 different MAC addresses are supported for traffic selection in

all mirroring sessions configured on the switch.

■ A destination MAC address is not supported as mirroring criteria for

routed traffic because in routed packets, the destination MAC address is

changed to the next-hop address when the packet is forwarded. There-

fore, the destination MAC address that you want to mirror will not appear

in routed packet headers.

This restriction also applies to the destination MAC address of a host that

is directly connected to a routing switch. (Normally, a host is connected

to an edge switch, which is directly connected to the router.)

To mirror routed traffic, it is recommended that you use classifier-based

policies to select IPv4 or IPv6 traffic for mirroring as described in “Select-

ing Inbound Traffic Using Advanced Classifier-Based Mirroring” on page

B-66.

■ On a switch, you can use a MAC address only once as a source MAC

address, and only once as a destination MAC address, to filter mirrored

traffic.

For example, after you enter the following commands:

monitor mac 111111-222222 src mirror 1

monitor mac 111111-222222 dest mirror 2

B-65

1 2 ... 646 647 648 649 650 651 652 653 654 655 656 ... 853 854

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