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Brocade 7840

Brocade 7840 Extension Switch

The Brocade 7840 is an ideal platform for building a high-performance data center extension infrastructure for replication and backup solutions. It leverages any type of inter-data center WAN transport to extend open systems and mainframe storage applications over any distance. Without the use of extension, those distances are often impossible or impractical.
In addition, the Brocade 7840 addresses the most demanding disaster recovery requirements. Twenty-four 16 Gbps Fibre Channel ports, sixteen 1/10 Gigabit Ethernet (GbE) ports, and two 40 GbE ports provide the bandwidth, port density, and throughput required for maximum application performance over WAN connections.

Brocade 7840 System Configuration figure

*Note: For more information Extended Remote Advanced Copy

Features and Benefits

  • Moves more storage data between data centers to meet increasing disaster recovery objectives with industry-leading performance and scalability
  • Encrypts storage data flows over distance at full line rate without a performance penalty
  • Provides load balancing and network resilience with Extension Trunking to increase WAN utilization and protect against WAN link failures
  • Consolidates Fiber Channel and IP storage traffic from heterogeneous devices for high-speed, high-availability, and secure transport between data centers
  • Delivers holistic management over distance for greater control and insight
  • Achieves always-on business operations with non-disruptive firmware upgrades
  • Extends proactive monitoring between data centers to automatically detect WAN anomalies and avoid unplanned downtime
  • Enables "pay-as-you-grow" scalability with capacity-on-demand upgrades

Technical Details : Brocade 7840

System Architecture

Enclosure 2U chassis designed to be mounted in a 19-in. cabinet
Fibre Channel ports 24 ports. 16Gbps. universal (E,F,M,D, and EX ports)
Ethernet ports 16 ports of 1/10 GbE for LAN and WAN connectivity
2 ports of 40 GbE for WAN connectivity
Scalabiliy Full fabric architecture with 254 switches maximum
Certified maximum Single fabric: 56 domains, 7 hops
Multiprotocol routing fabric: 19 hops
Fibre Channel performance 2.125 Gbps line speed, full duplex; 4.25 Gbps line speed, full duplex; 8.5 Gbps line speed, full duplex; 14.025 Gbps line speed, full duplex; auto-sensing of 2, 4, 8, and 16 Gbps port speeds
Ethernet interfaces 1 GbE, 10 GbE, and 40 GbE
Brocade Trunking (BT) Up to eight 16 Gbps ports per Brocade Trunk; up to 128 Gbps per trunk. There is no limit to how many trunk groups can be configured in the switch.
Fabric latency 700 ns with no contention, cut-through routing at 16 Gbps
Maximum Fibre Channel frame size 2,112-byte payload
Maximum IP MTU size Jumbo Frames at 9,216 bytes
Classes of service Class 2, Class 3, Class F (inter-switch frames)
Port types F_Port, E_Port, EX_Port, (FCR E_Port), D_Port (Diagnostic), M_Port (Mirror), and self-discovery based on switch type (U_Port); VE_Port (FCIP and IP)
Data traffic types Fabric switches supporting unicast, multicast (255 groups), and broadcast
USB One USB port for system log file downloads or firmware upgrades
Media types Fibre Channel: Brocade hot-pluggable Small Form Factor (SFP) and SFP+, short wavelength (SWL), long wavelength (LWL), and extended long wavelength (ELWL) transceivers (available wavelength options vary for 8 Gbps and 16 Gbps SFPs)
Ethernet: Brocade hot-pluggable Small Form Factor (SFP) and SFP+, short reach wavelength (SRWL), long reach wavelength (LRWL), extended long wavelength (ELWL), and copper SFP/SFP+ transceivers (available reach options vary from 1 GbE, 10 GbE, and 40 GbE)
Fabric services Simple Name Server (SNS); Registered State Change Notification (RSCN), NTP, RADIUS, RCS (Reliable Commit Service), Dynamic Path Selection (DPS), Exchange-based routing, device-based routing, port-based routing, lossless), Brocade Advanced Zoning, Web Tools, Extension Trunking, Adaptive Rate Limiting, WAN Test Tool (Wtool), Open Systems Tape Pipelining (OSTP), Fast Write, Adaptive Networking with QoS, Extended Fabrics, Fabric Vision technology, and Advanced Extension. Optional Fabric Services include Integrated Routing (FCR).
Licensing options The following optional extension features can be enabled via license keys:
  • Brocade 7840 WAN Rate Upgrade License 1 and 2: Enables additional WAN-side throughput to 10 Gbps and unlimited with enablement of 40 GbE ports

For futher information, please see:

Data sheets

Support for Brocade Switches/ExtremeSwitching VDX series