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Manuel d’utilisation Cisco Systems OL-12518-01

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Summary
  • Cisco Systems OL-12518-01 - page 1

    CH A P T E R 4-1 Data Center High Availability Clusters Design Guide OL-12518-01 4 FCIP over IP/MPLS Core This chapter discu sses the transport of Fibre Chan nel ov er IP (FCIP) o ver IP/ Multiprotocol Label Switching (MPLS) netw orks and addresses the netw ork requirements from a service pro vider (SP) perspectiv e. This chapter also describes ser ...

  • Cisco Systems OL-12518-01 - page 2

    4-2 Data Center High Availab ility Clusters Design Guide OL-12518-01 Chapter 4 FCIP o ver IP/MPLS Core Typical Customer Require ments Typical Customer Requirements Small-to-medium businesses (SMBs) represent about 90 percent of all compan ies in the United States. These companies typically employ a few hundred emplo yees and are highly focused on t ...

  • Cisco Systems OL-12518-01 - page 3

    4-3 Data Center High Availability Clusters Design Guide OL-12518-01 Chapter 4 FCIP over IP/MPLS Core Typical Customer Requirements The requirements are as follows: • FCIP transport o v er an optimized I P/MPLS networ k • Some type of compression mechanism (softw are or hardware) • Security mechanism (IPSec, encr yption, and VPN networks) • ...

  • Cisco Systems OL-12518-01 - page 4

    4-4 Data Center High Availab ility Clusters Design Guide OL-12518-01 Chapter 4 FCIP o ver IP/MPLS Core Typical Customer Require ments Hardware-based compression is a v ailable with SAN-OS version 2. 0 and with ne w hardwa re (MDS 9216i/MLS14/2). Compr ession is applied per FCIP inte rf ace (tunnel) with a v ariety of m odes a v ailable. Beginni ng ...

  • Cisco Systems OL-12518-01 - page 5

    4-5 Data Center High Availability Clusters Design Guide OL-12518-01 Chapter 4 FCIP over IP/MPLS Core Typical Customer Requirements Figur e 4-2 Cisco Comp ression Solutions The follo wing performan ce data applies to Figure 4-2 : • V AM—9.9–12 MB/sec –10.9 MB/sec a verage • V AM2—19.7–25.4 MB/sec – 1 9 MB/sec a verage • IPS—18.6? ...

  • Cisco Systems OL-12518-01 - page 6

    4-6 Data Center High Availab ility Clusters Design Guide OL-12518-01 Chapter 4 FCIP o ver IP/MPLS Core Typical Customer Require ments • SPs provid ing VPN service to transport FCIP tr af fi c to pro vide additional security • Using an MPLS extranet for application-specific security Cisco Encryp tion Solutions For sele cting compression solution ...

  • Cisco Systems OL-12518-01 - page 7

    4-7 Data Center High Availability Clusters Design Guide OL-12518-01 Chapter 4 FCIP over IP/MPLS Core Using FCIP Tape Acc eleration Write Acceleration Write Acceleration is a configurable feature intr oduced in SAN-OS 1.3 that enhances FCIP SAN extension with the IP Storage Se rvices Module. Write Acceleration is a SCSI protocol spoof ing mechanism ...

  • Cisco Systems OL-12518-01 - page 8

    4-8 Data Center High Availab ility Clusters Design Guide OL-12518-01 Chapter 4 FCIP o ver IP/MPLS Core Using FCIP Tape Ac celeration FCIP T ape Acceleration maintains data inte grity in the e v ent of a v ariety of error con ditions. Link errors and resets are handled through Fibre Channel-tape Ethernet LAN serv ices (ELS) reco v ery mechanisms. Sh ...

  • Cisco Systems OL-12518-01 - page 9

    4-9 Data Center High Availability Clusters Design Guide OL-12518-01 Chapter 4 FCIP over IP/MPLS Core Using FCIP Tape Acc eleration • TCP windo w size • TCP maximum bandwidth • TCP minimum a v ailable bandwidth • Round T rip T ime (R TT) TCP Window Size TCP uses a sliding windo w to control the fl ow of data from end to end. The TCP maximum ...

  • Cisco Systems OL-12518-01 - page 10

    4-10 Data Center High Availab ility Clusters Design Guide OL-12518-01 Chapter 4 FCIP o ver IP/MPLS Core Using FCIP Tape Ac celeration The min-availabl e-bw parameter provides the n ecessary control. Ev en in the presence of drops, the sender tries aggressi v ely to reach the v alue confi gured for this parameter . Even if t he congestion windo w is ...

  • Cisco Systems OL-12518-01 - page 11

    4-11 Data Center High Availability Clusters Design Guide OL-12518-01 Chapter 4 FCIP over IP/MPLS Core Using FCIP Tape Acc eleration • Simplif ied managemen t—Provides a un ifi ed mana gement en vironment ind ependent of whether servers use FCIP to connect to the storage network. • Comprehensi v e security—Combines the ubiq uitous IP securit ...

  • Cisco Systems OL-12518-01 - page 12

    4-12 Data Center High Availab ility Clusters Design Guide OL-12518-01 Chapter 4 FCIP o ver IP/MPLS Core Using FCIP Tape Ac celeration Multiprotocol Services Module The Cisco MDS 9000 Famil y 14/2-port Multipr otocol Services Module deli v ers the intelligence and adv anced features required to make multilayer SANs a real ity , by inte grating in a ...

  • Cisco Systems OL-12518-01 - page 13

    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 dedi cated for pur e Fibre Channel traff ic. But in most cases if QoS is enabled, most of the SAN applications can be transported across the sa me traff ic eng ...

  • Cisco Systems OL-12518-01 - page 14

    4-14 Data Center High Availab ility Clusters Design Guide OL-12518-01 Chapter 4 FCIP o ver IP/MPLS Core Applications Figur e 4-4 Using the GUI t o App ly QoS Applications Disaster recovery and b usiness continuance plans dr i ve the need for soluti ons that prote ct critical business information and pro vide c ontinuous access to important data in ...

  • Cisco Systems OL-12518-01 - page 15

    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 sho ws a typical service architecture for deplo ying FCIP ov er IP/MPLS. Figur e 4-5 FCIP ov er IP/MPLS Arc hit ect ure The FCIP gate way is the ke y compon ent of the ov erall arch ...

  • Cisco Systems OL-12518-01 - page 16

    4-16 Data Center High Availab ility Clusters Design Guide OL-12518-01 Chapter 4 FCIP o ver IP/MPLS Core Service Offerings over FCIP Figur e 4-6 FCIP ov er SP IP/MPLS Cor e f or Disast er Re cov ery Solution s Service Offering Scenario B—Connecting Multiple Sites In certain cases, customers prefer to hav e primary and secondary sites connect ed by ...

  • Cisco Systems OL-12518-01 - page 17

    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 bet ween Second Sit e and Third Site Service Offering Scenario C—Host-based Mirroring IP/MPLS networks can b e used to implement host-based mi rroring based on iSCSI. A typ ical network set ...

  • Cisco Systems OL-12518-01 - page 18

    4-18 Data Center High Availab ility Clusters Design Guide OL-12518-01 Chapter 4 FCIP o ver IP/MPLS Core MPLS VPN Core MPLS VPN Core MPLS provides an ef f icient mechanism for suppo rting VPNs, which of fer performance guarantees and security . Using a VPN, c ustomer traf f ic passes transpar ently through the Internet in a w ay that effecti vely se ...

  • Cisco Systems OL-12518-01 - page 19

    4-19 Data Center High Availability Clusters Design Guide OL-12518-01 Chapter 4 FCIP over IP/MPLS Core MPLS VPN Core Figur e 4-9 MPLS VPN for Storage Architec ture Multiple storage customers can be supp orted on th e same MPLS network. Customer 1 cannot see the customer 2 network because there are separate VPN routing/forwarding (VRF) tables for eac ...

  • Cisco Systems OL-12518-01 - page 20

    4-20 Data Center High Availab ility Clusters Design Guide OL-12518-01 Chapter 4 FCIP o ver IP/MPLS Core Testing Scenarios and Results When a PE router forwards a packet recei v ed from a CE router across th e provi der network, it labels the packet with the label learned from the destinat ion PE router . When the destination PE router receiv es the ...

  • Cisco Systems OL-12518-01 - page 21

    4-21 Data Center High Availability Clusters Design Guide OL-12518-01 Chapter 4 FCIP over IP/MPLS Core Testing Scenario s and Results Figure 4-1 0 T est Lab Setup and T opology VPN VRF—Specific Configurations MP BGP Configuration—PE1 The follo wing is a sample co nf iguration for PE1 in Figure 4-10 . The MP-BGP between the two PEs carries the CE ...

  • Cisco Systems OL-12518-01 - page 22

    4-22 Data Center High Availab ility Clusters Design Guide OL-12518-01 Chapter 4 FCIP o ver IP/MPLS Core Testing Scenarios and Results Gigabit Ethernet Interf ace Configuration—PE1 The follo wing sample co nf iguration is for the Gig abit Ethernet interf ace for PE1 in Figure 4 -10 . interface GigabitEthernet0/0/0 ip vrf forwarding storage ip addr ...

  • Cisco Systems OL-12518-01 - page 23

    4-23 Data Center High Availability Clusters Design Guide OL-12518-01 Chapter 4 FCIP over IP/MPLS Core Testing Scenario s and Results VRF Configuration— PE2 The follo wing are the VRF def inition s on the PE2(7500-106) rout er: ip vrf storage rd 105:106 route-target export 105:106 route-target import 105:106 This test assumes the Cisco MDS 9216/92 ...

  • Cisco Systems OL-12518-01 - page 24

    4-24 Data Center High Availab ility Clusters Design Guide OL-12518-01 Chapter 4 FCIP o ver IP/MPLS Core Testing Scenarios and Results Figure 4-1 1 Cisco MDS 9216 i Conn ection to GSR MPLS Cor e Configuring TCP Parameters on CPE (Cisco MDS 9216) A simple ping command from the Cisco MDS 9000 CLI, provides the R T T between the two IP addresses. R TT ...

  • Cisco Systems OL-12518-01 - page 25

    4-25 Data Center High Availability Clusters Design Guide OL-12518-01 Chapter 4 FCIP over IP/MPLS Core Testing Scenario s and Results Where sustained Gigabit throu ghput is not required (for example, o v er an OC-12 or slo wer W AN link), an MTU of 1500 b ytes is adequate . Otherwise, use jumbo frames if p ossible and set the MTU on the Gigabit Ethe ...

  • Cisco Systems OL-12518-01 - page 26

    4-26 Data Center High Availab ility Clusters Design Guide OL-12518-01 Chapter 4 FCIP o ver IP/MPLS Core Testing Scenarios and Results Figure 4-14 sho ws the a v erage latency with packet size of 1024. Figure 4-14 A verag e Lat ency—P ac k et siz e 1 024 Scenario 3—Cisco MDS 9216i Connection to Cisco 7500 (PE)/GSR (P) In this scenario, the Cisco ...

  • Cisco Systems OL-12518-01 - page 27

    4-27 Data Center High Availability Clusters Design Guide OL-12518-01 Chapter 4 FCIP over IP/MPLS Core Testing Scenario s and Results The test results re veal th at the maximum traf f ic that can be transported across the Cisco 7500 as PE is around 35 percent, as sh ow n in Figure 4-16 . Figure 4-16 T raf fic Load v ersus Utilization T est Results S ...

  • Cisco Systems OL-12518-01 - page 28

    4-28 Data Center High Availab ility Clusters Design Guide OL-12518-01 Chapter 4 FCIP o ver IP/MPLS Core Testing Scenarios and Results Scenario 6—Impact of Compression on CPE (Cisco 9216i) Performance Y ou can compress the data stre am to reduce W AN li nk utilization. Some W A N deployments may requ ire compression to ob tain adequate throughpu t ...

  • Cisco Systems OL-12518-01 - page 29

    4-29 Data Center High Availability Clusters Design Guide OL-12518-01 Chapter 4 FCIP over IP/MPLS Core Application Requirements Figure 4-1 8 Com pr ession Ratio Comparisons Application Requirements Before designing a W AN, it is important to understa nd the requirements o f each appl ication and ho w it performs on the network. Ther e are numerous a ...

  • Cisco Systems OL-12518-01 - page 30

    4-30 Data Center High Availab ility Clusters Design Guide OL-12518-01 Chapter 4 FCIP o ver IP/MPLS Core Conclusion In addition to th ose listed in Ta b l e 4 - 2 , other requirements includ e pro visioning, error mo nitoring, and end-to-end management. Remote Tape-Backup Applications In an enterprise network, certain sites (remote br anches or smal ...

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Manuel d’utilisation complet de l’appareil Cisco Systems OL-12518-01, quelle devrait-elle être?
Le manuel d’utilisation, également appelé le mode d’emploi, ou tout simplement le manuel, est un document technique destiné à aider à utiliser Cisco Systems OL-12518-01 par les utilisateurs. Des manuels sont généralement écrits par un rédacteur technique, mais dans un langage accessible à tous les utilisateurs Cisco Systems OL-12518-01.

Le manuel d’utilisation complet Cisco Systems, devrait inclure plusieurs éléments de base. Certains d'entre eux sont moins importants, tels que: la couverture / page de titre ou pages d'auteur. Cependant, la partie restante, devrait nous fournir des informations importantes du point de vue de l'utilisateur.

1. Introduction et des conseils sur la façon d'utiliser le manuel Cisco Systems OL-12518-01 - Au début de chaque manuel, nous devrions trouver des indices sur la façon d'utiliser le document. Il doit contenir des informations sur l'emplacement de la table des matières Cisco Systems OL-12518-01, FAQ ou des problèmes les plus fréquents - les points qui sont les plus souvent recherchés par les utilisateurs de chaque manuel
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