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Introduction
The
single-port Cisco Gigabit Ethernet Network
Module (part number NM-1GE) provides Gigabit
Ethernet optical and copper connectivity for
access routers. The module is supported by
the Cisco 2691, Cisco 3660, Cisco 3725, Cisco
3745, Cisco 3825, and Cisco 3845 series routers.
This network module has one gigabit interface
converter (GBIC) slot to carry any standard
copper or optical Cisco GBIC (see Table 1
for details). The flexibility to use different
GBICs allows for making a choice depending
on various factors, such as distance, cost,
existing infrastructure, future expansion
plans, and requirements.
The
Cisco Gigabit Ethernet Network Module enables
branch offices to cost-effectively utilize
high-speed uplinks in a variety of environments
(refer to Figure 1). The enhanced performance
allows customers to enable new applications
and services as well as providing greater
capacity for existing inter-VLAN routing and
bridging capabilities. Additionally, branch
offices will now have the opportunity to connect
to metropolitan-area networks (MANs). Cisco
IOS® Software provides enhanced capabilities
such as quality of service (QoS), network-based
application recognition (NBAR), IP Security
(IPSec), and Layer 3 virtual private networks
(VPNs).
Features
Ethernet
and VLAN Features
•
IEEE802.3 with IEEE802.2 Service Advertising
Protocol (SAP)
• IEEE802.3 with IEEE802.2 and Subnetwork
Access Protocol (SNAP)
• IEEE 802.1Q virtual LAN (VLAN) tagging
• Cisco Inter-Switch Link (ISL) support
• Flow control (802.3x)
Network
Management-Related Features
•
CiscoView
• Simple Network Management Protocol
(SNMP) support
• Remote Monitoring (RMON) support
• Cisco's NetFlow accounting
QoS
Features
•
Weighted Random Early Detection
• Precedence setting and mapping (802.1p)
• Committed Access Rate (CAR)
• Access control list (ACL)
• Extended ACLs
• Voice and remaining QoS features, per
platform and Cisco IOS Software version
Miscellaneous
•
Jumbo frame support, up to 16 KB
• Cisco Group Management Protocol (GMP),
Internet Group Management Protocol (IGMP)
for multicasting
• Hot Standby Router Protocol (HSRP)
• Online insertion and removal (OIR)-network
module OIR supported on Cisco 3660 and Cisco
3745
• Hot insertion and removal for GBICs
on all platforms
• Media type or GBIC type display-show
interface displays GBIC, media type
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