24/10-Port SAN Extension Module Main features and benefits The 24/10-Port SAN Extension Module is supported on IBM Storage Networking c-type family directors.  With 24 line-rate 2-, 4-, 8-, 10-, and 16-Gbps Fibre Channel ports, and eight 1- and 10-Gigabit Ethernet  FCIP ports, this module enables large and scalable deployment of SAN extension solutions. The SAN  extension module has two independent service engines that can each be individually and incrementally  enabled to scale as business requirements expand.  The SAN extension module supports the full range of services available on other IBM Storage Networking  c-type family directors Fibre Channel switching modules, including VSAN, security, and traffic  management services. The FCIP module uses IBM expertise and knowledge of IP networks to deliver  outstanding SAN extension performance, reducing latency for disk and tape operations with FCIP  acceleration features, including FCIP write acceleration and FCIP tape write and read acceleration.  Hardware-based encryption helps secure sensitive traffic with IP Security (IPsec), and hardware-based  compression dramatically enhances performance for both high- and low-speed links, enabling immediate  cost savings in expensive WAN infrastructure. Multiple FCIP interfaces within a single engine or across  service engines can be grouped into a port channel of up to 16 links for high availability and increased  aggregate throughput. Figure 2 shows the 24/10-Port SAN Extension Module. The 24/10-Port SAN Extension Module is designed for mission-critical enterprise storage networks that  require secure, robust, cost-effective business-continuance services. The SAN extension module offers  the following main features: FCIP for remote SAN extension :  Simplifies data-protection and business-continuance strategies by enabling backup, remote  o replication, and other disaster-recovery services over WAN distances using open standards FCIP  tunneling. Optimizes utilization of WAN resources for backup and replication by enabling hardware-based  o compression, hardware-based encryption, FCIP write acceleration, and tape read and write  acceleration for both FCIP and FICON over IP. The SAN extension module will support four  tunnels per interface and can scale up to 32 tunnels (four tunnels x eight 1/10GE ports). Preserves IBM Storage Networking c-type family enhanced capabilities, including VSANs,  o advanced traffic management, and security, across remote connections. 4 IBM Storage Networking SAN192C-6 Product Guide Figure 2. 24/10-Port SAN Extension Module