Cisco OL-12518-01 - Manuals

4-5 Data Center High Availability Clusters Design Guide OL-12518-01 Chapter 4 FCIP over IP/MPLS Core Typical Customer Requirements Figure 4-2 Cisco Compression Solutions The following performance data applies to Figure 4-2 : • VAM—9.9–12 MB/sec –10.9 MB/sec average • VAM2—19.7–25.4 MB/sec – 19 MB/se...

4-6 Data Center High Availability Clusters Design Guide OL-12518-01 Chapter 4 FCIP over IP/MPLS Core Typical Customer Requirements • SPs providing VPN service to transport FCIP traffic to provide additional security • Using an MPLS extranet for application-specific security Cisco Encryption Solution...

4-7 Data Center High Availability Clusters Design Guide OL-12518-01 Chapter 4 FCIP over IP/MPLS Core Using FCIP Tape Acceleration Write Acceleration Write Acceleration is a configurable feature introduced in SAN-OS 1.3 that enhances FCIP SAN extension with the IP Storage Services Module. Write Accel...

4-8 Data Center High Availability Clusters Design Guide OL-12518-01 Chapter 4 FCIP over IP/MPLS Core Using FCIP Tape Acceleration FCIP Tape Acceleration maintains data integrity in the event of a variety of error conditions. Link errors and resets are handled through Fibre Channel-tape Ethernet LAN ...

4-9 Data Center High Availability Clusters Design Guide OL-12518-01 Chapter 4 FCIP over IP/MPLS Core Using FCIP Tape Acceleration • TCP window size • TCP maximum bandwidth • TCP minimum available bandwidth • Round Trip Time (RTT) TCP Window Size TCP uses a sliding window to control the flow of data ...

4-10 Data Center High Availability Clusters Design Guide OL-12518-01 Chapter 4 FCIP over IP/MPLS Core Using FCIP Tape Acceleration The min-available-bw parameter provides the necessary control. Even in the presence of drops, the sender tries aggressively to reach the value configured for this parame...

4-11 Data Center High Availability Clusters Design Guide OL-12518-01 Chapter 4 FCIP over IP/MPLS Core Using FCIP Tape Acceleration • Simplified management—Provides a unified management environment independent of whether servers use FCIP to connect to the storage network. • Comprehensive security—Com...

4-12 Data Center High Availability Clusters Design Guide OL-12518-01 Chapter 4 FCIP over IP/MPLS Core Using FCIP Tape Acceleration Multiprotocol Services Module The Cisco MDS 9000 Family 14/2-port Multiprotocol Services Module delivers the intelligence and advanced features required to make multilay...

4-13 Data Center High Availability Clusters Design Guide OL-12518-01 Chapter 4 FCIP over IP/MPLS Core QoS Requirements in FCIP QoS Requirements in FCIP Currently, most of the FCIP links are dedicated for pure Fibre Channel traffic. But in most cases if QoS is enabled, most of the SAN applications ca...

4-14 Data Center High Availability Clusters Design Guide OL-12518-01 Chapter 4 FCIP over IP/MPLS Core Applications Figure 4-4 Using the GUI to Apply QoS Applications Disaster recovery and business continuance plans drive the need for solutions that protect critical business information and provide c...

4-15 Data Center High Availability Clusters Design Guide OL-12518-01 Chapter 4 FCIP over IP/MPLS Core Service Offerings over FCIP Service Offerings over FCIP Figure 4-5 shows a typical service architecture for deploying FCIP over IP/MPLS. Figure 4-5 FCIP over IP/MPLS Architecture The FCIP gateway is...

4-16 Data Center High Availability Clusters Design Guide OL-12518-01 Chapter 4 FCIP over IP/MPLS Core Service Offerings over FCIP Figure 4-6 FCIP over SP IP/MPLS Core for Disaster Recovery Solutions Service Offering Scenario B—Connecting Multiple Sites In certain cases, customers prefer to have prim...

4-17 Data Center High Availability Clusters Design Guide OL-12518-01 Chapter 4 FCIP over IP/MPLS Core Service Offerings over FCIP Figure 4-7 FCIP Connectivity between Second Site and Third Site Service Offering Scenario C—Host-based Mirroring IP/MPLS networks can be used to implement host-based mirr...

4-18 Data Center High Availability Clusters Design Guide OL-12518-01 Chapter 4 FCIP over IP/MPLS Core MPLS VPN Core MPLS VPN Core MPLS provides an efficient mechanism for supporting VPNs, which offer performance guarantees and security. Using a VPN, customer traffic passes transparently through the ...

4-19 Data Center High Availability Clusters Design Guide OL-12518-01 Chapter 4 FCIP over IP/MPLS Core MPLS VPN Core Figure 4-9 MPLS VPN for Storage Architecture Multiple storage customers can be supported on the same MPLS network. Customer 1 cannot see the customer 2 network because there are separa...

4-20 Data Center High Availability Clusters Design Guide OL-12518-01 Chapter 4 FCIP over IP/MPLS Core Testing Scenarios and Results When a PE router forwards a packet received from a CE router across the provider network, it labels the packet with the label learned from the destination PE router. Wh...

4-21 Data Center High Availability Clusters Design Guide OL-12518-01 Chapter 4 FCIP over IP/MPLS Core Testing Scenarios and Results Figure 4-10 Test Lab Setup and Topology VPN VRF—Specific Configurations MP BGP Configuration—PE1 The following is a sample configuration for PE1 in Figure 4-10 . The MP...

4-22 Data Center High Availability Clusters Design Guide OL-12518-01 Chapter 4 FCIP over IP/MPLS Core Testing Scenarios and Results Gigabit Ethernet Interface Configuration—PE1 The following sample configuration is for the Gigabit Ethernet interface for PE1 in Figure 4-10 . interface GigabitEthernet...

4-23 Data Center High Availability Clusters Design Guide OL-12518-01 Chapter 4 FCIP over IP/MPLS Core Testing Scenarios and Results VRF Configuration— PE2 The following are the VRF definitions on the PE2(7500-106) router: ip vrf storage rd 105:106 route-target export 105:106 route-target import 105:...

4-24 Data Center High Availability Clusters Design Guide OL-12518-01 Chapter 4 FCIP over IP/MPLS Core Testing Scenarios and Results Figure 4-11 Cisco MDS 9216i Connection to GSR MPLS Core Configuring TCP Parameters on CPE (Cisco MDS 9216) A simple ping command from the Cisco MDS 9000 CLI, provides t...

4-25 Data Center High Availability Clusters Design Guide OL-12518-01 Chapter 4 FCIP over IP/MPLS Core Testing Scenarios and Results Where sustained Gigabit throughput is not required (for example, over an OC-12 or slower WAN link), an MTU of 1500 bytes is adequate. Otherwise, use jumbo frames if pos...

4-27 Data Center High Availability Clusters Design Guide OL-12518-01 Chapter 4 FCIP over IP/MPLS Core Testing Scenarios and Results The test results reveal that the maximum traffic that can be transported across the Cisco 7500 as PE is around 35 percent, as shown in Figure 4-16 . Figure 4-16 Traffic...

4-28 Data Center High Availability Clusters Design Guide OL-12518-01 Chapter 4 FCIP over IP/MPLS Core Testing Scenarios and Results Scenario 6—Impact of Compression on CPE (Cisco 9216i) Performance You can compress the data stream to reduce WAN link utilization. Some WAN deployments may require comp...

4-29 Data Center High Availability Clusters Design Guide OL-12518-01 Chapter 4 FCIP over IP/MPLS Core Application Requirements Figure 4-18 Compression Ratio Comparisons Application Requirements Before designing a WAN, it is important to understand the requirements of each application and how it perf...

4-30 Data Center High Availability Clusters Design Guide OL-12518-01 Chapter 4 FCIP over IP/MPLS Core Conclusion In addition to those listed in Table 4-2 , other requirements include provisioning, error monitoring, and end-to-end management. Remote Tape-Backup Applications In an enterprise network, ...