Cisco EtherSwitch Service Modules Feature Guide
Information About the Cisco EtherSwitch Service Modules
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Cisco IOS Release 12.2(25)SEC
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Egress queues and scheduling
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Four egress queues per port.
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WTD as the congestion-avoidance mechanism for managing the queue lengths and providing
drop precedences for different traffic classifications.
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SRR as the scheduling service for specifying the rate at which packets are dequeued to the
egress interface (shaping or sharing is supported on egress queues). Shaped egress queues are
guaranteed but limited to using a share of port bandwidth. Shared egress queues are also
guaranteed a configured share of bandwidth, but can use more than the guarantee if other queues
become empty and do not use their share of the bandwidth.
Power-over-Ethernet Features
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Ability to provide power to connected Cisco pre-standard and IEEE 802.3af-compliant powered
devices from all 10/100-Mbps Ethernet ports if the Cisco EtherSwitch service module detects that
there is no power up the circuit
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A 24-port PoE Cisco EtherSwitch service module can provide up to 15.4 W of power on each
10/100-Mbps port. A 48-port PoE Cisco EtherSwitch service module can provide up to 15.4 W of
power to any 23 of the 48 10/100-Mbps ports. Any combination of ports can provide up to an average
of 7.5 W of power at the same time, depending on the power supply capacity in the router chassis.
Note
Total power provided is up to the limit of the platform power supply. PoE requires using the
AC+IP power supply (not the default power supply) that was shipped with your router. For
information about PoE power requirements, access the Cisco.com web page. Click the
Products and Solutions
link. From the pull-down menu, click
Routers and Routing
Systems
. Click the router platform on which you will install the Cisco EtherSwitch service
module.
Monitoring Features
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Cisco EtherSwitch service module LEDs that provide port-, service module-, and stack-level status
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MAC address notification traps and RADIUS accounting for tracking users on a network by storing
the MAC addresses that the Cisco EtherSwitch service module has learned or removed
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Switched Port Analyzer (SPAN) and Remote SPAN (RSPAN) for traffic monitoring on any port or
VLAN
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SPAN and RSPAN support of Intrusion Detection Systems (IDS) to monitor, repel, and report
network security violations
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Four groups (history, statistics, alarms, and events) of embedded RMON agents for network
monitoring and traffic analysis
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Syslog facility for logging system messages about authentication or authorization errors, resource
issues, and timeout events
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Layer 2 traceroute to identify the physical path that a packet takes from a source device to a
destination device
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Time Domain Reflectometer (TDR) to diagnose and resolve cabling problems on copper Ethernet
10/100/1000-Mbps ports
