天天向上
分类： 系统运维
2008-04-28 16:54:38
The following functions are not supported by the EtherSwitch network module:
•CGMP client, CGMP fast-leave
•Dynamic ports
•Dynamic access ports
•Secure ports
•Dynamic trunk protocol
•Dynamic VLANs
•GARP, GMRP, and GVRP
•ISL tagging (The chip does not support ISL.)
•Layer 3 switching onboard
•Monitoring of VLANs
•Multi-VLAN ports Network Port
•Shared STP instances
•STP uplink fast for clusters
•VLAN-based SPAN
•VLAN Query Protocol
•VTP Pruning Protocol
•Web-based management interface
To configure the EtherSwitch network module, you should understand the following concepts:
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•Network Security with ACLs at Layer 2
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•Statistical gains by combining multiple traffic types over a common IP infrastructure.
•Long distance savings
•Support for intra-chassis stacking
•Voice connectivity over data applications
•IPSec, ACL, VPN and Firewall options
•New broadband WAN options
The Interface Range Specification feature makes configuration easier for these reasons:
•Identical commands can be entered once for a range of interfaces, rather than being entered separately for each interface.
•Interface ranges can be saved as macros.
The EtherSwitch network module is designed to work as part of the Cisco Architecture for Voice, Video, and Integrated Data (AVVID) solution. The EtherSwitch network module has sixteen 10/100 switched Ethernet ports with integrated inline power and QoS features that allow for extending Cisco AVVID-based voice-over-IP (VoIP) networks to small branch offices.
The 16-port EtherSwitch network module has sixteen 10/100BASE-TX ports and an optional 10/100/1000BASE-T Gigabit Ethernet port. The 36-port EtherSwitch network module has thirty six 10/100BASE-TX ports and two optional 10/100/1000BASE-T Gigabit Ethernet ports. The gigabit Ethernet can be used as an uplink port to a server or as a stacking link to another 16- or 36-port EtherSwitch network module in the same system. The 36-port EtherSwitch network module requires a double-wide slot. An optional power module can also be added to provide inline power for IP telephones.
As an access gateway switch, the EtherSwitch network module can be deployed as a component of a centralized call-processing network using a centrally deployed Cisco CallManager (CCM). Instead of deploying and managing key systems or PBXs in small branch offices, applications are centrally located at the corporate headquarters or data center and are accessed via the IP WAN.
By default, the EtherSwitch network module provides the following settings with respect to Cisco AVVID:
• All switch ports are in access VLAN 1.
• All switch ports are static access ports, not 802.1Q trunk ports.
• Default voice VLAN is not configured on the switch.
• Inline power is automatically supplied on the 10/100 ports.
