Table Of Contents
Cisco MDS 9000 Family Port
•Encapsulation of Fibre Channel frames into Ethernet frames—Enables transparent, low-cost analysis of Fibre Channel traffic while leveraging existing Ethernet infrastructure
•Lightweight, portable, "plug-and-play device"—Facilitates troubleshooting anywhere in the network
•Non-disruptive traffic analysis—Allows local monitoring of Fibre Channel-2 (FC-2) to Fibre-Channel 4 (FC-4) layers and Enhanced Inter-Switch Link (EISL) headers with no interruption to traffic flow
Cisco MDS 9000 Port Analyzer Adapter
Cisco MDS 9000 Port Analyzer Adapter
The Cisco MDS 9000 Port Analyzer Adapter enables effective, low-cost analysis of Fibre Channel traffic anywhere in the network at any time. The device is a standalone Fibre Channel-to-Ethernet adapter that allows for simple, transparent analysis of Fibre Channel traffic in a switched fabric. Specifically, Fibre Channel layers FC-2, FC-3, and FC-4 may be examined without any network disruption. The FC-2 layer specifies the structure, format, and usage of Fibre Channel frames and defines flow control and classes of service. The FC-3 layer defines common service features like multicast. The FC-4 layer specifies the mapping rules for upper-layer protocols. The Cisco MDS 9000 Port Analyzer Adapter supports all Fibre Channel frame sizes. Additionally, EISL headers can be encapsulated to be included for analysis.
The Cisco MDS 9000 Port Analyzer Adapter is a "plug-and-play" accessory for the Cisco MDS 9000 Family of Directors and Fabric Switches that enables the use of the Switched Port Analyzer (SPAN) feature. SPAN allows storage network administrators to view non-disruptively the traffic between two Fibre Channel ports on a Cisco MDS 9000 Director or Fabric Switch by replicating traffic to a SPAN Destination Port (SD-Port). The Cisco MDS 9000 Port Analyzer Adapter encapsulates the Fibre Channel frames from the SD-Port into Ethernet frames that may be analyzed using a locally attached PC.
The Cisco MDS 9000 Port Analyzer Adapter is a self-contained hardware device that does not require external software to operate and cannot be field upgraded with software.There are two versions of the Port Analyzer Adapter, the base version (Part number DS-PAA) and an enhanced version (Part number DS-PAA-2). The two versions are identical in hardware, but the enhanced version becomes a powerful tool to aid in accurate performance monitoring of the network when used in conjunction with the Cisco Fabric Manager. The enhanced Port Analyzer Adapter can record the original size of truncated Fibre Channel frames as they become encapsulated in Ethernet. This allows the Cisco Fabric Manager to calculate performance data without requiring forwarding of full frames.
Both versions of the Cisco MDS 9000 Port Analyzer Adapter ship with one multimode Fibre Channel Small Form-factor Pluggable (SFP) for short wave connectivity. Single mode Fibre Channel SFPs may be used, as well, and are available from Cisco. The adapter also ships with one AC to DC converter power supply.
Figure 2 illustrates a common network topology using the Cisco MDS 9000 Port Analyzer Adapter.
Cisco MDS 9000 Port Analyzer Adapter Implementation
Fibre Channel Traffic and Protocol Analysis
The following Cisco MDS 9000 Family Fibre Channel analysis solutions utilize the Cisco MDS 9000 Port Analyzer Adapter:
•Cisco Traffic Analyzer for Fibre Channel
•Cisco Protocol Analyzer for Fibre Channel
The Cisco Traffic Analyzer provides real-time analysis of SPAN traffic or analysis of captured traffic through a Web browser user interface. Traffic encapsulated by one or more Port Analyzer Adapters can be analyzed concurrently with a single PC and ntop, which is public domain software enhanced by Cisco for Fibre Channel traffic analysis. This Cisco Traffic Analyzer solution enables you to quickly determine the throughput for traffic between specific Fibre Channel sources and destinations, all traffic in a particular Virtual SAN (VSAN), or all network traffic. Round trip response times, SCSI I/Os per second, SCSI read vs. write traffic throughput and frame counts, SCSI session status and management task information are provided. Additional statistics are also available on Fibre Channel frame sizes and network management protocols.
The Cisco Traffic Analyzer throughput values are only accurate when used with the enhanced version of the Port Analyzer Adapter if data truncation is enabled.
The Cisco Protocol Analyzer enables Fibre Channel traffic to be analyzed at the frame level in real-time or from captured SPAN traffic through a Java graphical user interface. Traffic encapsulated by a PAA can be analyzed by Ethereal, which is public domain software enhanced by Cisco for Fibre Channel and SCSI protocol decoding. Ethereal filters captured data to reduce file size and to enable easier location of frames of interest.
The key advantage of the Cisco solution is its simplicity. The portable, lightweight adapter can be connected to any port on any Director or Fabric Switch in the MDS 9000 Family. Storage administrators can troubleshoot anywhere in the network quickly and cost-effectively, with no network disruption.
The Cisco MDS 9000 Port Analyzer Adapter allows analysis of Fibre Channel frames in the following modes:
•No Truncate Mode: Fibre Channel frames are passed without any modification to the payload.
•Ethernet Truncate Mode: Fibre Channel frames are truncated to 1496 bytes to fall within the maximum Ethernet frame size.
•Shallow Truncate Mode: Fibre Channel frames are truncated if the payload of the frame is more than 256 bytes.
•Deep Truncate Mode: Fibre Channel frames are truncated if the payload of the frame is more than 64 bytes.
•Management Mode: Only fixed 288 byte Ethernet frames that contain internal debug information are transmitted.
These modes may be configured via a four-position DIP switch located at the rear of the adapter.
•One Fibre Channel interface, SFP Type LC
•One Ethernet interface
•Fibre Channel Port speed: 1.0625 Gbps—2.1250 Gbps
•Ethernet Port speed: 100 Mbps—1.25 Gbps
Table 1 gives supported Fibre Channel optics, media, and transmission distances.
•Status LED: Green (operational); Red (faulty); Off (no power)
•Fibre Channel Status LED: Green (2 Gbps); Off (1 Gbps)
•Fibre Channel Link LED: Green (link is up); Off (link is down)
•Ethernet LED for 100 Mbps: Green (link is up); Blinking Green (transmit); Off (link is down)
•Ethernet LED for 1 Gbps: Green (link is up); Blinking Green (transmit); Off (link is down)
•Temperature, ambient operating
–32°F (0°C) to 104°F (40°C)
•Temperature, ambient nonoperating and storage
–-40°F (-40°C) to 158°F (70°C)
•Humidity (RH), ambient (noncondensing) operating
–10% to 90%
•Humidity (RH), ambient (noncondensing) nonoperating and storage
–5% to 95%
–Sea level to 6500 feet (2000 m)
•Dimensions (H x W x D)
–1.13 x 6.00 x 4.25 in. (2.87 x 15.24 x 10.79 cm)
–1.0 lb (0.5 kg)
•One 20W AC to DC Converter Power Supply
–Input: 100-240VAC ~ 1A nominal (±10% for full range)
50-60Hz nominal (±3 Hz for full range)
–Output: 20W (12VDC @ 1.7A)
The Cisco MDS 9000 Port Analyzer Adapter meets the following compliance and safety standards:
–CAN/CSA-C22.2 No. 60950
•FCC Part 15 (CFR 47) Class A
•ICES-003 Class A
•EN 55022 Class A
•CISPR 22 Class A
•AS/NZS 3548 Class A
•VCCI Class A
Industry EMC, Safety, and Environmental Standards
•GR-63-Core Network Equipment Building Standards (NEBS) Level 3
•GR-1089-Core NEBS Level 3
•ETS 300 019 Storage Class 1.1
•ETS 300 019 Transportation Class 2.3
•ETS 300 019 Stationary Use Class 3.1
Table 2 gives ordering information for the Cisco MDS 9000 Port Analyzer Adapter.
1The Cisco MDS 9000 Port Analyzer Adapter automatically ships with one DS-SFP-FC-2G-SW