02_01_switches

1、Switches,Dell | EMC Fibre Channel Switches,Switch Basics Review,An FC switch is an intelligent device that connects multiple Fibre Channel devices together.FC switches provide services including Name Servers, Alias Serv

2、ers, and Zone Servers.,Dell | EMC Switch Family,BrocadeDS-8B SwitchDS-16B SwitchDS-8B2 SwitchDS-16B2 Switch DS-32B2 SwitchSilkWorm 3250 (DS-8B3)SilkWorm 3850 (DS-16B3)McDataDS-16M SwitchDS-32M SwitchDS-1

3、6M2 SwitchDS-24M2 SwitchDS-32M2 Switch,Dell | EMC Switch Matrix,Brocade Switches,Dell | EMC Switch Family,Brocade Silkworm 2400,Brocade Silkworm 2800,Dell | EMC Switch Family,Brocade Silkworm 3200,Brocade Silkworm 3800

4、,Brocade Silkworm 3900,Dell | EMC Switch Family,Brocade SilkWorm 3250,Brocade SilkWorm 3850,DS-8B and DS-16B Overview,Supports Fibre Channel published standardsAll ports are universal (can be F, FL, or E Port)DS8B has

5、8 ports, DS16B has 16 portsMaximum of 8 switches connected together in a fabric via an Inter Switch Link (ISL)Limited to three hops maximum,Brocade DS-8B and DS-16B Overview,Fabric Services Supported by Brocade switche

6、s:Simple Name ServerZoning,Optional Licenses,The following optional licenses will come with the switches shipping from EMC:QuickLoopExtended FabricIf a QuickLoop or Extended Fabric license is required it must be ord

7、ered separately,Brocade Switch Management,Java based Web GUISNMPTelnetTelnet command subset via Serial Port on DS-8B and DS-16B2,DS-8B Hardware Overview,DS-16B Hardware Overview,DS-16B2 Hardware Overview,DS-16B2 Switc

8、h Features,16 ports provide full-duplex, throughput at either 1.0625 Gbps or 2.125 Gbps.16 LEDs (green/yellow) to indicate status for each port.16 LEDs (green/dark) to indicate status for each port.Universal ports sel

9、f-configure as F_ports, FL_ports, or E_ports.One LED (green) to indicate system power-on status.Fibre Channel auto-sensing ports self-negotiate to the highest speed supported by attached devices.,Switch Management and

10、Configuration,Telnet Command OverviewWeb Tools Usage,Telnet Overview,Telnet is the command line interface to manage the Brocade switchUser needs the following for a successful log in:Switch name or IP addressUser Nam

11、ePasswordOnly one Telnet session is allowed per switch at a time,Telnet Log In,Log on capabilitiesadmin: Full configuration authorityuser: Access to commands that don’t change the switchChanging passwords:admin log

12、 on to change password for allIssue command `passwd`. Each user name is displayed along with prompts for new user name and password.If password is lost, then it has to be reset to the factory default via the front pan

13、el in the DS16B switch or connecting via serial cable for the DS8B switch.Default Logon: adminDefault Password: password,Using the “help” Command,Using the `help` command will display all commands available on your s

14、witch such asGeneral CommandsDiagnostic CommandsRouting CommandsLicensed Commands Zoning CommandsWeb Tools CommandsQuickLoop CommandsTo view help topics for a specific command, type help before the command,Firmwa

15、re Upgrades,Firmware updates can be downloaded via EthernetHost systems can be Unix or NTWindows NT and UnixMust use additional utilitiesUses rsh daemon (RSHD) or FTP utilityUse the `firmwareDownload` commandRememb

16、er to reboot the switch,A graphical user interface (GUI) for managing a Switch onlineWorks on Netscape and Internet Explorer web browsers with JRE 1.2.2 or higherDoes not have the complete functionality of Telnet comma

17、ndsHas some rudimentary performance monitoring tools,Web Tools,Requirements for Web GUI,Requires a Web LicenseRequires Fabric OS 2.1.1+JRE version 1.2.2 or aboveNetscape 4.5+ or Internet Explorer 5.0+Must edit hosts

18、 file to include the IP Address and name of the switch. For example:128.221.99.203switch1Uses the hosts file as reference for access to multiple switches.,McData Switches,Dell | EMC Switch Family,Dell | EMC Switch F

19、amily,Overview,Departmental Switch DS-16M (16-port)DS-32M (32-port)DS-16M2 (16-port)DS-24M2 (16-port)DS-32M2 (16-port)Topologies Supported:Switched Fabric (only),Port Types,F_Port (Fabric port)Node Ports (n_port

20、s) plug into theseE_Port (Expansion port)Ports on switches to connect them together into one fabric. The cable serves as an InterSwitch Link (ISL) between them.G_Port (Generic port) Port that auto senses what is plu

21、gged into it and if it is an N_Port (HBA or FA), it changes to an F_Port or if it is another switch, it will change to an E_Port,DS-16/32M Parts - Front,DS-32M,DS-16M,DS-16M Parts - Rear,DS-32M Parts - Rear,DS-16/32M FRU

22、s (Field Replaceable Units),Concurrent FRUs (online)SFP Optics – Small Form Factor Pluggable OpticsPower Supplies (w/fans)System Board Fan Modules,SFP,Small Form Factor PluggableLC connectorShort-wave 500 meters,Mc

23、Data System Board Features,Control Processor:SSP subsystem: System Services ProcessorRuns operating systemCommunicates with portsControls Serial & Ethernet portsTwo memory regions to store firmware code, switch

24、configuration information, operating parameters.Allows for ONLINE firmware upgrades on McData switches,Reset / IML,Reset Button:Microprocessor and functional logic for the control processor (CTP) and loads firmware fr

25、om FLASH memoryPorts, causing all Fibre Channel connections to drop momentarily until the connections automatically recover,Management Tools,Maintenance Port Uses RS-232 port connection (& null modem cable)Require

26、s HyperTerminal to access through the Serial PortEmbedded Web Server Connects using IP over EthernetRequires a Web Browser (Netscape 4.6, IE 4.0 or higher),Telnet Command Index,Telnet connectivity is a new feature (v.

27、1.4.0)Most commands through GUI are availableZoning is availableScripting is optional,Cascading Switches,Advantages of Cascading Switches,Cascading is the interconnection of switches via ISL (E_Ports)Extends a switch

28、 fabricIncreases port count and connectivityAllows easy and stepwise fabric growthIncreases distance between interconnected devicesCompletely automatic and configurableFully distributed name serviceThis allows name

29、 server zoning by WWPN to be respected through out the fabricZoning is done at any one switch in the fabric and the configuration is distributed to all other switches within the fabric by the distributed name service,Su

30、pported Topologies - General Rules,Ensure all Firmware revisions are the same.No more than 50% of the ports on any switch should be ISL’s.Each switch must have a unique domain ID. (See Switch Administration window on B

31、rocade Web Tools or Configure – Switch – Operating Parameters window on McData Embedded Web Server)A fabric can contain EMC storage, supported non-EMC storage, and EMC supported hosts, as well as Dell PowerVault SANs.E

32、ach switch must be able to reach any other switch in a fabric in 3 hops or less.A minimum of 2 ISLs between two directly communicating switches are required, regardless of the number of switches in the fabric.,Two Switc

33、h Cascade,Two ISL connections are used for performance purposesTotal switch ports available is 28Can also be used to increase distance between nodes in a fabric,Three Switch Cascade,Two ISL connections between each swi

34、tch are used for performance purposesTotal switch ports available is 36,Four Switch Cascade,Two ISL connections between each switch are used for performance purposesTotal switch ports available is 40,Comments on Cascad

35、ing M-Series Switches,Limited functionality when using only Departmental switches.Embedded Web Server only displays the local switch.Check ISL port to make sure it was correctly detected as an E-port.WWN of devices on

36、 cascaded switch do not appear in web interface. Requires manual input of WWN for zoning purposes.,Interoperability,All Brocade Departmental Switches (DS-8B, DS-16B, DS-16B2) in a single fabric are interoperable.All M

37、cData Departmental Switches (DS-16M and DS-32M) in a single fabric are interoperable. (Interop Mode set to McData Fabric 1.0)The Brocade line of switches and the McData line of switches are not allowed in the same fab

38、ric.A Dell PowerVault SAN is can be in the same Fabric as a Dell | EMC SAN. However, they cannot be in the same Zone.,EMC Zoning,Understanding Zones,A zone is a group of fabric-connected devices arranged into a specifie

39、d grouping. Any device connected to a fabric may be included in one or more zones. Devices within a zone possess an awareness of other devices within the same zone; they are not aware of devices outside of their zone. T

40、herefore, if zoning is enabled, any device not in a zone is not able to communicate with any other device.Zone members (ports, WWNs, or aliases) are grouped into a zone; in turn, zones are grouped in a zone configuratio

41、n (a collection of zones).Zones can overlap; that is, a device can belong to more than one zone and a fabric can consist of multiple zones.,Hard Zoning (Port),In a hard zone, all zone members are specified as switch por

42、ts; any number of ports in the fabric can be configured to the zone. When a zone member is specified by port number, only the individual device port specified is included in the zone.Hard zones are position-dependent,

43、that is, a device is identified by the physical port to which it is connected. Switch hardware ensures that there is no data transfer between devices outside the zone. Devices can transfer data between ports within the

44、 same zone.,Soft Zoning (WWN),In a soft zone, at least one zone member is specified by WWN. A device is included in a zone if either the node WWN or port WWN specified matches an entry in the name server table. When a d

45、evice logs in, it queries the name server for devices within the fabric. If zoning is in effect, only the devices in the same zone(s) are returned. Other devices are hidden from the name server query reply. When a WWN

46、is specified, all ports on the specified device are included in the zone.Soft zones are name server-dependent and therefore provide more flexibility - new devices can be attached without regard to physical location.,Ena

47、bling a Zone,When a zone configuration is enabled, all zones within the configuration are enabled. All devices within an enabled zone are visible to each other; however, they cannot communicate outside their zone. Zo