BROCADE IP PRIMER

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GlossaryVirtual link In OSPF, all areas must be connected to the backbone (area 0). Insome situations, it may be physically inconvenient (or impossible) to directlyconnect an area to the backbone. A virtual link provides a tunnel throughanother area to the backbone.Virtual server In load balancing, this is the “fake” server that is defined on theload balancer. This defines the VIP. The load balancer answers for the virtualserver requests and forwards them to the real servers.VLAN Virtual Local Area Network. This is defined in IEEE 802.1q. A VLANallows an engineer to subdivide a physical switch into smaller Layer 2 broadcastdomains. These subdivisions may also extend to multiple switches andLayer 2 devices. It allows for the formation of a Layer 2 broadcast domain thatis not restricted by the physical dimensions of the network equipment.VLAN Group For ease of configuration, VLAN Groups allow an engineer to bundlemultiple VLANs that have an identical configuration.VLL Virtual Leased Lines. VLL is also known as Pseudo Wire Emulation (PWE).MPLS VLL is a method of providing point-to-point Ethernet /VLAN connectivityover an MPLS domain. The VLL is considered to be a Layer 2 VPN circuit acrossa single Layer 3 backbone.VLSM Variable Length Subnet Mask. This is part of classless network addressing.With a variable-length mask, an engineer may more finely subdividenetwork classes to specific sizes and requirements.VoIP Voice over IP. This is a protocol that provides voice services using an IPnetwork.VRRP Virtual Router Redundancy Protocol. This protocol provides the abilityfor multiple devices to share a single IP address in an active/standby fashion.VRRP-E (Extended) has provided additional features and expandability to theoriginal protocol.VSRP Virtual Switch Redundancy Protocol. This is a protocol that providesLayer 2 redundancy in the event of an entire switch failing. It functions in anactive/standby fashion.WAN Wide Area Network. This describes a network extending across a largergeographic area. This often includes long distance circuits connecting geographically-diverselocations. The Internet is an example of the largest WAN.Well-known port For TCP and UDP ports, there are several ports that havebeen publicly registered for use with specific Layer 7 protocols. For the mostpart, these are port numbers between 1 and 1024.Wildcard mask Where a subnet mask uses a consecutive stream of 1s and0s to define a network portion and host portion of an address, a wildcardmask uses 1s to indicate which bits of an address are changeable. In a wildcardmask, 0s indicate that this bit of the address will not change. The 0s and1s do not have to be consecutive. This method provides a greater deal of flexibility,particularly in configuring ACLs.Brocade IP Primer 421
GlossaryWindow This describes how much data can be sent before the sender mustwait for an acknowledgment from the recipient.WSM Web Switch Management Module. This is the key component of aServerIron chassis. A WSM contains an MP and several BPs. Its function isLayer 4-7 switching. The more BPs in a WSM, the greater the capacity itprovides.422 Brocade IP Primer
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BROCADEIPPRIMERFIRST EDITIONEveryth
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Important NoticeUse of this book co
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ContentsChapter 2: TCP/IP .........
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ContentsPart Three: Layer 3 Switchi
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ContentsRedundancy: Virtual Router
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ContentsCheck 5: Available Session
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Part One: Introduction toNetworking
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Networking Basics1The world of comp
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The OSI Reference ModelEach of thes
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The OSI Reference ModelApplicationA
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The Application Layer (Layer 7)This
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The Session Layer (Layer 5)You inte
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The Transport Layer (Layer 4)So, wh
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The Transport Layer (Layer 4)point,
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The Data Link Layer (Layer 2)By far
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The Physical Layer (Layer 1)One oth
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Layer 1 Ethernet (Cabling)What if a
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Layer 1 Ethernet (Cabling)Twisted P
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Console49F Link 50F1 3 5 7 9 1113 1
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Layer 1 Ethernet (Cabling)SC connec
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Layer 2 Ethernet (Addressing)Ethern
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Half-duplex vs. Full-duplexine, thi
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Brocade Ethernet Switches & Routers
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Chapter Review Questions5. What lay
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TCP/IP2The most popular protocol st
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Console49F Link 50F1 3 5 7 9 1113 1
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Network Classes128 64 32 16 8 4 2 1
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Network ClassesWhat we haven't talk
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The SubnetTable 2. Understanding Su
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Layer 4 TCP/IP: TCP/UDPRFC 1918 spe
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Layer 4 TCP/IP: TCP/UDPtions will a
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Transmission Control Protocol (TCP)
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User Datagram Protocol (UDP)When it
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49F Link 50FPower11F 2F 3F 4F32Cons
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Packet CapturingTcpdump is a comman
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SummaryYou'll typically need some s
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Chapter Review Questions3. What is
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Answers to Review Questionscan't us
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Data Center Bridging (DCB)3Introduc
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Introduction802.1Qbb: Priority-base
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The Ethernet PAUSE Functionresponsi
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Enhanced Tranmission SelectionFrom
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Data Center Bridge eXchangeData Cen
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Building the DCB CloudBuilding the
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Summary• Enhanced Transmission Se
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TRILL—Adding Multi-Pathingto Laye
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Why do we need it?To address this p
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The TRILL ProtocolJust as important
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Moving TRILL DataMAC-RB4MAC-RB1RB3R
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Load Balancing Basics5With the rise
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Co ns ol ePwrCC U1 PU 2 PU 3TxActRx
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Co ns ol ePwrActi veC PU 2 PU 3C PU
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Chapter Review Questions• Direct
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Chapter Review Questions7. Your loa
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Answers to Review Questions9. d. Yo
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Part Two: SwitchingThe following ch
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J-FxGMR4Ac ti veLi nkLinkLinkLi nkP
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Accessing the CLIThis is not the on
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Online HelpFor your convenience, yo
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The configProbably the most recogni
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Software (and where it's stored)All
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Software (and where it's stored)Let
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show commandsThe copy command can b
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clear commandsThere's one more show
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Configuring the InterfaceHere's an
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PingSource . Particularly if you ar
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Filters and Regular ExpressionsThis
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User Access ControlUser Access Cont
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User Access ControlIf you were to c
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User Access ControlBy default, a ne
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User Access ControlYou can also con
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User Access ControlSNMP also allows
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The Web UIYou can see that you have
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SummaryBut what if you want to disa
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Chapter Review Questions2. Which RM
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Answers to Review Questions5. c. Th
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Switch TrunksYou define static trun
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show CommandsOperational trunks:Tru
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Chapter Review Questions3. Which ty
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Virtual Local Area Network(VLAN)8No
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Configuring VLANsNow, we need to se
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Configuring VLANsVLAN, and add it b
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PowerPower49F Link 50F49F Link 50FC
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VLAN GroupsYou also have to assign
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Chapter Review QuestionsChapter Rev
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Answers to Review Questions4. a. An
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49FLinkPower49FLinkPower50F50FConso
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IEEE 802.1d (Spanning Tree Protocol
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IEEE 802.1d (Spanning Tree Protocol
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IEEE 802.1s (MST)Port IEEE 802.1W P
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IEEE 802.1s (MST)another instance o
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Console49F Link 50F1 3 5 7 9 1113 1
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SummaryWe need to define this on bo
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Chapter Review Questions4. BPDUs:a.
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Part Three: Layer 3Switching (Routi
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The Routing TableLet's take a momen
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The “Null” RouteTo see RIP's ro
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Chapter Review Questions2. What is
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Open Shortest Path First(OSPF)11We
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Getting to Know Your NeighborsHello
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Autonomous Systems (AS)This still d
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Link State Advertisement (LSA)A NSS
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Configuring OSPFIf you use a loopba
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Configuring OSPFHere's an example t
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Summary• show ip ospf virtual-lin
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Chapter Review Questions3. By defau
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Multi Protocol LabelSwitching (MPLS
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What is MPLS?Step 4. The labeled pa
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MPLS Virtual Leased Lines (VLL)Step
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MPLS Layer 3 VPNsTo validate the co
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MPLS Layer 3 VPNsConfiguring MPLS L
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Border Gateway Protocol(BGP)13For m
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The Autonomous System (AS)As of 201
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Configuring BGPTo summarize, the pe
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Configuring BGPBut how do we use ou
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SummarySummary• BGP is the standa
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Answers to Review Questions7. What
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Security, Redundancyand More14We've
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Security: Access Control Lists (ACL
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RXTXCle a rChannel T3Test A IS Y e
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Access Control Lists: Not Just For
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Redundancy: Virtual Router Redundan
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SummaryThe other processing mechani
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Chapter Review QuestionsChapter Rev
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Answers to Review QuestionsAnswers
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Part Four: Layer 4-7Switching (Load
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Server Load Balancing (SLB)15Welcom
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The Brocade ServerIronThe Managemen
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The Brocade ServerIronAttackerEcho
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ServerIronThe Brocade ServerIrondoe
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Predictors• Round-robin. This is
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Configuring SLBGoing back to our in
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Configuring SLBWhen a real server p
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SLB show CommandsSLB show CommandsT
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SLB show Commands• Active (ACT).
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Configuring Direct Server Return (D
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ServerIronServerIronBI4XGBI4XGBI24C
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Symmetric Server Load BalancingIf y
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Remote ServersIn this scenario, Ser
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Summary— Server response time onl
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Chapter Review Questions5. Which co
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424C424C424C424C424C424CConsolePwrA
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Session PersistenceNow, let's say t
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Session PersistenceWhen a sticky se
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Session PersistenceNow, you must en
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URL SwitchingURL SwitchingURL switc
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424C424C424C424C424C424CConsolePwrA
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Configuring Transparent Cache Switc
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SummarySummary• Policy-based SLB
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Page 394 and 395: FWLB show CommandsAs we mentioned a
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Page 402 and 403: Global Server Load Balancing(GSLB)1
Page 404 and 405: Domain Name Service (DNS)take the n
Page 406 and 407: Enter: Global Server Load Balancing
Page 408 and 409: How Does GSLB Decide?Now, I mention
Page 410 and 411: How Does GSLB Decide?Check 6: Flash
Page 412 and 413: Configuring GSLBIt's the address of
Page 414 and 415: GSLB show CommandsNext, there may b
Page 416 and 417: Chapter Review Questions1. What doe
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Page 420 and 421: Glossary10Base-T An Ethernet specif
Page 422 and 423: GlossaryAuthentication This is the
Page 424 and 425: GlossaryDCB Data Center Bridging. T
Page 426 and 427: GlossaryFrame This is the data unit
Page 428 and 429: GlossaryLACPDU Link Aggregation Con
Page 430 and 431: GlossaryNIC Network Interface Contr
Page 432 and 433: GlossaryRoot switch In Spanning Tre
Page 434 and 435: GlossaryTAC Technical Assistance Ce
Page 438: BROCADE IP PRIMERFIRST EDITIONThe w
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