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CISCO WS-X6748-SFP 48 Port 1000mb SFP Switch Module

$62.90 (Ex. GST)

In stock: 6

The Cisco WS-X6748-SFP is a 48-port Gigabit Ethernet SFP switch module for the Cisco Catalyst 6500 / 7600 Series chassis-based switches. It is a classic, high-density line card from the mid-2000s era, widely deployed in enterprise, campus, data center, and service provider networks for Gigabit Ethernet aggregation over fiber.

The WS-X6748-SFP is a CEF720-based (Cisco Express Forwarding) 48-port 1000BASE-X SFP module that provides 48 × 1 Gigabit Ethernet ports using SFP transceivers (Small Form-factor Pluggable). It is designed for high-performance, non-blocking Layer 2/3 switching and routing in Catalyst 6500/6500-E/7600/7600-S chassis.

Key highlights:

  • All 48 ports are 1 Gigabit Ethernet only (1000BASE-X) — no 10/100/1000 copper or 10GbE support
  • Uses standard SFP transceivers (1000BASE-SX, LX, ZX, T, etc.)
  • Integrated CEF720 forwarding engine with distributed forwarding (dCEF) when paired with a Supervisor Engine that supports it (e.g., Sup720, Sup32, Sup720-10G, Sup2T)
  • Full Layer 2 switching + Layer 3 routing (with appropriate supervisor and PFC/MSFC)
  • Very high port density in a single slot — up to 384 Gigabit ports in a 13-slot 6513 chassis
  • Supports Jumbo frames (up to 9216 bytes), QoS, ACLs, NetFlow, MPLS, VRF-Lite, and multicast

This module was extremely popular for fiber-based Gigabit aggregation in large campuses, data centers, or metro Ethernet deployments before the widespread adoption of 10GbE and higher-speed modules (e.g., WS-X6908-10G, WS-X6848-SFP-2T).

Model / Part Number: Cisco WS-X6748-SFP

Series: Catalyst 6500 / 7600 Series line card

Port Count: 48 × 1 Gigabit Ethernet SFP ports

Transceiver Type: SFP (1000BASE-SX/LX/ZX/T – short/long-reach multimode/single-mode fiber or copper)

Forwarding Engine: CEF720 (distributed CEF when used with dCEF-capable supervisor)

Switching Capacity (per module): 48 Gbps (non-blocking for all ports)

Forwarding Rate: Up to 72 Mpps (with dCEF supervisor)

Layer Support: Full Layer 2 + Layer 3 (depends on supervisor engine + PFC/MSFC)

Jumbo Frames: Up to 9216 bytes

QoS: Port-based, 802.1p, DSCP, policing, queuing

Multicast: IGMP snooping, PIM, multicast replication

Power Consumption: ≈190–220W (typical full load)

Cooling: Chassis-provided (no onboard fans)

Status (2025–2026): Legacy / End-of-Sale / End-of-Support – Cisco ended support years ago; no new production

Market Availability: Refurbished or used pulls from decommissioned Catalyst 6500/7600 chassis

Common Sources: eBay, surplus networking resellers (Renewtech, ServerSupply, NTC-Tech, AHTech Solutions)

Typical Price Range: $100–$350 (refurbished, depending on condition and SFP compatibility testing)

  • Ports: 48 × 1 Gigabit Ethernet SFP (1000BASE-X)
  • Port Speeds: 1000 Mbps only (no 10/100/10000 Mbps support)
  • Transceiver Support: Standard Cisco 1Gb SFP modules (GLC-SX-MMD, GLC-LH-SMD, GLC-ZX-SMD, GLC-T, etc.)
  • Switching Fabric Connection: 720 Gbps fabric (CEF720 architecture)
  • Forwarding Engine: CEF720 (distributed forwarding with Sup720/Sup32/Sup720-10G/Sup2T)
  • Layer 2 Features: VLANs (4,096), VTP, STP/RSTP/MSTP, EtherChannel (LACP/PAgP), PVST+/RPVST+, Jumbo frames
  • Layer 3 Features: Static routing, RIP, OSPF (with PFC/MSFC), EIGRP stub, HSRP/VRRP/GLBP, VRF-Lite
  • QoS: 8 queues per port, strict priority + WRR/WRED, policing, marking, classification
  • ACLs: Up to 128K entries (depending on supervisor/PFC configuration)
  • NetFlow: NetFlow v5/v9 support (with Sup720 or higher)
  • Multicast: Hardware multicast replication, IGMP snooping, PIM-SM/DM/SSM
  • Power Consumption: ≈190–220W (full load, varies with SFPs)
  • Operating Temperature: 0°C to 40°C (32°F to 104°F) – chassis-dependent
  • Dimensions: Full-height, full-length module (fits Catalyst 6500/7600 slots)
  • Weight: ≈4.5–5 kg (typical for CEF720 line cards)

Real-World Context & Performance

CISCO WS-X6748-SFP 48 Port 1000mb SFP Switch Module 2nd :: Alt () Other //

CISCO WS-X6748-SFP 48 Port 1000mb SFP Switch Module 2nd :: Alt () Other //

$62.90 (Ex. GST)

$62.90 (Ex. GST)

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