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Optical Transceivers for Cisco WS-C4948-S Switch
2016-10-12
WS-C4948-E Type Of Tutorial Cisco 4900 Switch SFP Switch

Cisco WS-C4948-S Switch Overview

WS-C4948-S belongs to the Cisco Catalyst 4900 Series Switches, it widely used in Layer 2 and Layer 3 server switching deployments for enterprise and small and medium-sized (SMB) businesses. The Cisco Catalyst 4948 offers 48 ports of wire-speed 10/100/1000BASE-T with 4 alternative wired ports that can accommodate optional 1000BASE-X Small Form-Factor Pluggable (SFP) optics. Exceptional reliability and serviceability are delivered with optional internal AC or DC 1 + 1 hot-swappable power supplies and a hot-swappable fan tray with redundant fans.

Cisco WS-C4948-S Switch

Cisco WS-C4948-S Switch Parameters


Device Type 
Switch - 48 ports - Managed             
Enclosure Type
Rack-mountable 1U
Subtype
Gigabit Ethernet
Ports
48 x 10/100/1000 + 4 x SFP
Performance
Switching capacity: 96 Gbps ¦ Throughput: 72 Mpps
Capacity 
Active VLANs: 4096 ¦ Spanning Tree Protocol instances: 1500 ¦ Switched virtual interfaces (SVIs): 2000 ¦ QoS hardware entries: 32000 ¦ Multicast entries (Layer 3): 28000 ¦ Multicast entries (Layer 2): 16000
MAC Address Table Size
32K entries 
Jumbo Frame Support 
9216 bytes
Routing Protocol 
RIP-1, RIP-2, EIGRP, static IP routing
Remote Management Protocol
SNMP 1, SNMP 2, RMON 1, RMON 2, RMON 3, RMON 9, Telnet, SNMP 3, HTTPS, TFTP, SSH, SSH-2, CLI
Features

Layer 3 switching, Layer 2 switching, auto-sensing per device, IP-routing, auto-negotiation, BOOTP support, ARP support, trunking, Cisco Fast EtherChannel,

VLAN support, Cisco Gigabit EtherChannel , IGMP snooping, ISL support, Syslog support, manageable, MAC address filtering, Broadcast Storm Control, IPv6 support,

Multicast Storm Control, Spanning Tree Protocol (STP) support, Rapid Spanning Tree Protocol (RSTP) support, Multiple Spanning Tree Protocol (MSTP) support,

DHCP snooping,Dynamic Trunking Protocol (DTP) support, Port Aggregation Protocol (PAgP) support, Trivial File Transfer Protocol (TFTP) support,

Access Control List (ACL) support, Quality of Service (QoS), RADIUS support, Jumbo Frames support, Virtual Route Forwarding-Lite (VRF-Lite),  

Time Domain Reflectometry (TDR), WCCP 2.0, Per-VLAN Spanning Tree Plus (PVST+), Uni-Directional Link Detection (UDLD), Link Aggregation Control Protocol (LACP),

Remote Switch Port Analyzer (RSPAN), Per-VLAN Rapid Spanning Tree (PVRST)  

Compliant Standards 
IEEE 802.3, IEEE 802.3u, IEEE 802.3z, IEEE 802.1D, IEEE 802.1Q, IEEE 802.3ab, IEEE 802.1p, IEEE 802.3ad (LACP), IEEE 802.1w, IEEE 802.1x, IEEE 802.1s, IEEE 802.3ah, IEEE 802.1ag 
Power Redundancy
Optional 
Dimensions (WxDxH)
43.9 cm x 41 cm x 4.4 cm
Weight 
6.4 kg

Optical Transceivers for Cisco WS-C4948-S Switch

Based on the SFP (optical module form factor) Gigabit Ethernet ports accommodate range SFP (optical module form factor) optical transceivers, including Cisco 1000BASE-T, 1000BASE-SX, 1000Base-LX/LH, 1000BASE-ZX. For more information on these Cisco optical transceivers, please check the following table.
MFG Part number
Description
Price 
GLC-T 
Cisco GLC-T Compatible 1000BASE-T SFP Copper RJ-45 100m Transceiver 
US$13.02
GLC-TE 
Cisco GLC-TE Transceiver Module Compatible 1000M SFP Copper 100m
US$13.02 
GLC-SX-MM
Cisco GLC-SX-MM Compatible 1000BASE-SX SFP 850nm 550m DOM Transceiver
US$6.00 
GLC-LH-SM
Cisco GLC-LH-SM Compatible 1000Base-LX/LH SFP 1310nm 10km Transceiver
US$7.00 
GLC-ZX-SM
Cisco GLC-ZX-SM Compatible 1000BASE-ZX SFP 1550nm 70km Transceiver 
US$24.00
GLC-SX-MMD
Cisco GLC-SX-MMD Compatible 1000BASE-SX SFP 850nm 550m DOM Transceiver 
US$6.00
GLC-LH-SMD
Cisco GLC-LH-SMD Compatible 1000Base-LX/LH SFP 1310nm 10km DOM Transceiver
US$7.00
GLC-BX-D
Cisco GLC-BX-D Compatible 1000BASE-BX-D SFP 1490nm-TX/1310nm-RX 10km DOM Transceiver 
US$12.00
GLC-BX-U 
Cisco GLC-BX-U Compatible 1000BASE-BX-U SFP 1310nm-TX/1490nm-RX 10km DOM Transceiver
US$9.00
CWDM SFP 
1.25G CWDM SFP 1270~1450nm 120km LC DDM Optical Transceiver 
US$55.00 
DWDM SFP 
Cisco DWDM-SFP-3033 Transceiver Module Compatible 1.25G DWDM SFP DWDM:1528~1564nm 80km 
US$186.00 
Note: Cozlink compatible with Cisco optical module. For more information, please feel free to contact us.

How to determine what types of optical transceivers for Cisco switches?

1. Finding the corresponding optical module compatibility matrix via Cisco official website. 
2. On the running switches, enter the privileged mode and input # "show idprom interface gi1 / 0/48" command, you can query the optical module model and serial number, If not, try to input other two commands: xuxic or show idprom int g2/6
3. Checking the type and port based on the specification, it can be used as long as it is gigabit SFP optical module interface. But the specific models to be decided according to the actual demand, such as type, the actual use of distance, single-mode or multimode, single fiber or dual fiber etc. Welcome to consult Cozlink engineer.

Summary

The Cisco WS-C4948-S Switch is a wire-speed, low-latency, Layer 2-4, 1-rack-unit (1 RU) fixed-configuration switch for rack-optimized server switching. These switches support a huge number of Gigabit Ethernet SFP optical transceivers. All these high quality fiber optic transceivers can be found on Cozlink for great prices. Cozlink also make sure to provide its customers same day shipping. You can also choose fiber optic pigtails and high speed cables from a great range of products on Cozlink.
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