Cisco WS-X6416-GE-MT - Interface Module - Expansion Uživatelský manuál stáhnout pdf (Strana 41)

White Paper

In Cisco IOS Software only an interface configuration level command is needed; the global

configurations are made as part of this single macro.

In the examples below, AutoQoS is enabled and is configured to trust all incoming CoS and DSCP

marking. The third example configures port 3/1 for ingress QoS for a Cisco IP phone:

Cisco Catalyst OS Cisco IOS Software

set qos autoqos

set port qos 3/1 autoqos trust cos

set port qos 3/1 autoqos trust dscp

set port qos 3/1 autoqos voip ciscoipphone

Switch(config)#int gi 3/1

Switch(config-if)#switchport

Switch(config-if)#auto qos voip cisco-phone

Note: For further information about AutoQoS macro command inclusion, see

http://www.cisco.com/en/US/partner/products/hw/switches/ps708/products_configuration_guide_ch

apter09186a0080121d11.html#22805.

Switch Port Analyzer (SPAN)

SPAN is a troubleshooting analysis feature used to mirror the traffic coming to and from physical

and logical interfaces on the switch. A SPAN session is an association of a set of SPAN source

ports or VLANs that need to be monitored and a SPAN destination port is where the mirrored

traffic is sent. The SPAN destination port does not belong to any VLAN and does not participate in

spanning tree. Any 10M, 100M, 1G, or 10G port can be configured as a SPAN source or

destination port (including fabric-enabled and DFC-enabled line cards).

SPAN has been implemented differently between the two operating systems. the Cisco Catalyst

OS can support up to two ingress-only or ingress/egress SPAN sessions and four egress-only

SPAN sessions. Cisco IOS Software is slightly different in that it also supports two ingress-only or

ingress/egress SPAN sessions and beginning in Cisco IOS Software release 12.2(33)SXH an

additional fourteen egress only span sessions are supported. In addition, Cisco IOS Software has

the added functionality of allowing the CPU interfaces as SPAN source ports. Using the CPU as a

source port for SPAN sessions provides the ability to baseline CPU bound traffic typers as well as

troubleshoot CPU related issues.

Different SPAN sessions can contain overlapping or distinct sets of source interfaces. Both

switchports and routed ports can be configured as SPAN sources. Different SPAN sessions must

contain distinct, nonoverlapping sets of destination interfaces.

Ingress SPAN (Rx) copies network traffic received by the source ports for analysis at the

destination port. Egress SPAN (Tx) copies network traffic transmitted from the source ports.

Configuration option "both" copies network traffic received and transmitted by the source ports to

the destination port. Cisco IOS Software can monitor 128 Egress or “both” sources and up to 128

ingress ports as source ports.

Up to 64 SPAN destination interfaces are supported.

The following example configures ports 5/1-2 as SPAN Sources and port 5/3 as the SPAN

destination.

Cisco Catalyst OS Cisco IOS Software

set span 5/1,5/2 5/3 rx create monitor session 1 source int f5/1—2 rx

monitor session 1 dest int f5/3

With Cisco IOS Software Release 12.2(18)SXE and above.

1 2 ... 36 37 38 39 40 41 42 43 44 45 46 ... 50 51

Komentáře k této Příručce

Žádné komentáře

Cisco WS-X6416-GE-MT - Interface Module - Expansion Uživatelský manuál Strana 41

Komentáře k této Příručce

Související produkty a manuály pro Sítě Cisco WS-X6416-GE-MT - Interface Module - Expansion