Cisco WS-C4507R Troubleshooting Manual
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Cisco WS-C4507R Troubleshooting Manual

Troubleshooting guide
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RST-3508
9805_05_2004_c2
RST-3508
9805_05_2004_c2
© 2004 Cisco Systems, Inc. All rights reserved. Printed in USA.
Presentation_ID.scr
CISCO CATALYST 4000 AND 4500

TROUBLESHOOTING

SESSION RST-3508
© 2004 Cisco Systems, Inc. All rights reserved.
Troubleshooting
Connectivity
•
Performance
•
Unexpected feature behavior
•
Which then impacts connectivity and/or
performance
© 2004 Cisco Systems, Inc. All rights reserved.
1
2 2 2

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Summary of Contents for Cisco WS-C4507R

  • Page 1: Troubleshooting

    Troubleshooting Connectivity • Performance • Unexpected feature behavior • Which then impacts connectivity and/or performance RST-3508 9805_05_2004_c2 2 2 2 © 2004 Cisco Systems, Inc. All rights reserved. © 2004 Cisco Systems, Inc. All rights reserved. Printed in USA. Presentation_ID.scr...
  • Page 2 Non-Blocking Gig Only Non-Blocking Gig Only All Ports QinQ Pass-Through Pass-Through In Hardware Active Redundant Sup Uplinks RST-3508 9805_05_2004_c2 4 4 4 © 2004 Cisco Systems, Inc. All rights reserved. © 2004 Cisco Systems, Inc. All rights reserved. Printed in USA. Presentation_ID.scr...

  • Page 3: Software Options

    For the latest features always use latest • CCO EW release RST-3508 9805_05_2004_c2 6 6 6 © 2004 Cisco Systems, Inc. All rights reserved. © 2004 Cisco Systems, Inc. All rights reserved. Printed in USA. Presentation_ID.scr...
  • Page 4 76 Gigabit Ethernet/IEEE 802.3 interface(s) 403K bytes of non-volatile configuration memory. Configuration register is 0x2102 RST-3508 9805_05_2004_c2 8 8 8 © 2004 Cisco Systems, Inc. All rights reserved. © 2004 Cisco Systems, Inc. All rights reserved. Printed in USA. Presentation_ID.scr...
  • Page 5 Redundancy • Hardware and Related Issues • Unicast Packet Forwarding • Multicast Packet Forwarding • ACLs • • RST-3508 9805_05_2004_c2 © 2004 Cisco Systems, Inc. All rights reserved. © 2004 Cisco Systems, Inc. All rights reserved. Printed in USA. Presentation_ID.scr...
  • Page 6 Image text-base: 0x00000000, data-base: 0x010B0624 *********************************** STANDBY SUPERVISOR REDUNDANCY mode is RPR * Waiting for Switchover Activity * *********************************** RST-3508 9805_05_2004_c2 © 2004 Cisco Systems, Inc. All rights reserved. © 2004 Cisco Systems, Inc. All rights reserved. Printed in USA. Presentation_ID.scr...

  • Page 7: Startup Configuration

    *********************************** STANDBY SUPERVISOR REDUNDANCY mode is RPR * Waiting for Switchover Activity * *********************************** cisco WS-C4507R (MPC8245) processor (revision 4) with 524288K bytes of memory. Processor board ID FOX062105G1 Last reset from Reload 1 Virtual Ethernet/IEEE 802.3 interface(s) 96 FastEthernet/IEEE 802.3 interface(s) 26 Gigabit Ethernet/IEEE 802.3 interface(s)
  • Page 8 Format the Standby format slaveslot0: copy <source> slavebootflash: Source Could Be Active Supervisor Files or TFTP Server copy <source>slaveslot0: RST-3508 9805_05_2004_c2 © 2004 Cisco Systems, Inc. All rights reserved. © 2004 Cisco Systems, Inc. All rights reserved. Printed in USA. Presentation_ID.scr...
  • Page 9 Unknown Unknown Unknown Other 3 0005.9a80.3c00 to 0005.9a80.3c2f 0.9 System Failures: ---------------- Power Supply: bad/off (see 'show power') RST-3508 9805_05_2004_c2 © 2004 Cisco Systems, Inc. All rights reserved. © 2004 Cisco Systems, Inc. All rights reserved. Printed in USA. Presentation_ID.scr...

  • Page 10: Power Supply Redundancy

    Inline Power (-50V) Backplane Power (3.3V) ---------------------- ---- Total Used 375 (not to exceed Total Maximum Available = 1400) RST-3508 9805_05_2004_c2 © 2004 Cisco Systems, Inc. All rights reserved. © 2004 Cisco Systems, Inc. All rights reserved. Printed in USA. Presentation_ID.scr...
  • Page 11 Supervisor Engine ports in an EtherChannel • Supervisor II: Both ports can be in the EtherChannel Single Cisco IOS supervisor in slot 1 or 2: gi1/1–2 or gi2/1–2 active With Sup II-Plus or IV Dual Supervisors, only gig1/1 AND gig2/1 active; but...
  • Page 12 Gi1/2 r3_4507R_S4.cisco.co 0009.e845.5f00 Gi2/1 10001 9805_05_2004_c2 © 2004 Cisco Systems, Inc. All rights reserved. HARDWARE AND RELATED ISSUES RST-3508 9805_05_2004_c2 © 2003, Cisco Systems, Inc. All rights reserved. © 2004 Cisco Systems, Inc. All rights reserved. Printed in USA. Presentation_ID.scr...
  • Page 13 By default on Cisco IOS switches the interfaces are • Layer 2 switchport interfaces “no switchport” command converts these to Layer • 3 routed interfaces RST-3508 9805_05_2004_c2 © 2004 Cisco Systems, Inc. All rights reserved. © 2004 Cisco Systems, Inc. All rights reserved. Printed in USA. Presentation_ID.scr...
  • Page 14 • Switch fabric Application Specific Integrated Circuit (ASIC) and other hardware management Line card ASIC management Port monitoring RST-3508 9805_05_2004_c2 © 2004 Cisco Systems, Inc. All rights reserved. © 2004 Cisco Systems, Inc. All rights reserved. Printed in USA. Presentation_ID.scr...
  • Page 15 • Cisco IOS processes The reason there are two processes is when a job in Cisco Catalyst 4500 platform takes longer time than expected or exceeds the max allocated CPU time, the job would be run under low-priority for sometime until it's...

  • Page 16: Cpu Queues

    Protects important traffic when CPU usage is high • BPDUs/routing updates get priority Can still telnet or SNMP query when CPU is high RST-3508 9805_05_2004_c2 © 2004 Cisco Systems, Inc. All rights reserved. © 2004 Cisco Systems, Inc. All rights reserved. Printed in USA. Presentation_ID.scr...
  • Page 17 MTU Fail/Invalid L2 and L3 High, Medium, and Low Are Based on the DSCP/COS Field of the Packet RST-3508 9805_05_2004_c2 © 2004 Cisco Systems, Inc. All rights reserved. © 2004 Cisco Systems, Inc. All rights reserved. Printed in USA. Presentation_ID.scr...
  • Page 18 Incoming packets are allowed on SPAN destination port • Monitor the CPU port (excellent in capturing high CPU util) • Cisco Catalyst 4500: Only LAN Switch where you can monitor on the CPU port • Switch Fabric Switch Fabric Table...
  • Page 19 Pings through the switch are handled as • ordinary data packets and switched in HW RST-3508 9805_05_2004_c2 © 2004 Cisco Systems, Inc. All rights reserved. © 2004 Cisco Systems, Inc. All rights reserved. Printed in USA. Presentation_ID.scr...

  • Page 20: Best Practices

    Note: Supervisor Engine V Supports Contain simple “stub” ASICs, PHYs 3 Additional Line Card Slots No buffering or local switching RST-3508 9805_05_2004_c2 © 2004 Cisco Systems, Inc. All rights reserved. © 2004 Cisco Systems, Inc. All rights reserved. Printed in USA. Presentation_ID.scr...
  • Page 21 • front-panel port or connect to stubs Supervisor Switch Fabric Six Full-Duplex Gbps Connections to Supervisor Switch Fabric RST-3508 9805_05_2004_c2 © 2004 Cisco Systems, Inc. All rights reserved. © 2004 Cisco Systems, Inc. All rights reserved. Printed in USA. Presentation_ID.scr...

  • Page 22: Ieee 802.3X Flow Control

    3. End Station Waits File Server Required Time Before Sending Port Rx-No-Pkt-Buff RxPauseFrames TxPauseFrames PauseFramesDrop Gi4/7 35648 4854 RST-3508 9805_05_2004_c2 © 2004 Cisco Systems, Inc. All rights reserved. © 2004 Cisco Systems, Inc. All rights reserved. Printed in USA. Presentation_ID.scr...
  • Page 23 ISL only on front panel gig E ports of WS-X4232-L3 Jumbo frames are supported on non-blocking • ports and only on IOS supervisors RST-3508 9805_05_2004_c2 © 2004 Cisco Systems, Inc. All rights reserved. © 2004 Cisco Systems, Inc. All rights reserved. Printed in USA. Presentation_ID.scr...
  • Page 24 RST-3508 9805_05_2004_c2 © 2004 Cisco Systems, Inc. All rights reserved. © 2004 Cisco Systems, Inc. All rights reserved. Printed in USA. Presentation_ID.scr...

  • Page 25: Port States

    Admin down Inactive: Typically VLAN doesn’t exist Errdisable: EtherChannel mismatch; duplex mismatch causing excessive late collisions; UDLD; BPDU Guard RST-3508 9805_05_2004_c2 © 2004 Cisco Systems, Inc. All rights reserved. © 2004 Cisco Systems, Inc. All rights reserved. Printed in USA. Presentation_ID.scr...
  • Page 26 Internal transmit buffer is full; oversubscription • Rcv-err: Rx buffer is full • Late collisions: Duplex mismatch • RST-3508 9805_05_2004_c2 © 2004 Cisco Systems, Inc. All rights reserved. © 2004 Cisco Systems, Inc. All rights reserved. Printed in USA. Presentation_ID.scr...
  • Page 27 Control Gi4/7 340119 43128 Frames Port Dbl-Drops-Queue-1 Dbl-Drops-Queue-2 Dbl-Drops-Queue-3 Dbl-Drops-Queue-4 Gi4/7 Port Rx-No-Pkt-Buff RxPauseFrames TxPauseFrames PauseFramesDrop Gi4/7 35648 RST-3508 9805_05_2004_c2 © 2004 Cisco Systems, Inc. All rights reserved. © 2004 Cisco Systems, Inc. All rights reserved. Printed in USA. Presentation_ID.scr...
  • Page 28 SPAN: source/destination UDLD: Link Debounce: Link Debounce Time: Port Security: Dot1x: Maximum MTU: 1552 bytes (Baby Giants) (truncated) RST-3508 9805_05_2004_c2 © 2004 Cisco Systems, Inc. All rights reserved. © 2004 Cisco Systems, Inc. All rights reserved. Printed in USA. Presentation_ID.scr...

  • Page 29: Root Guard

    Port fast BPDU Filter • • Backbone Fast Root Guard • • 802.1w(RST)/802.1s(MST) UDLD • • Rapid PVST+ • RST-3508 9805_05_2004_c2 © 2004 Cisco Systems, Inc. All rights reserved. © 2004 Cisco Systems, Inc. All rights reserved. Printed in USA. Presentation_ID.scr...

  • Page 30: Spanning Tree Support

    If greater use MST mode • RST-3508 9805_05_2004_c2 © 2004 Cisco Systems, Inc. All rights reserved. UNICAST PACKET FORWARDING RST-3508 9805_05_2004_c2 © 2003, Cisco Systems, Inc. All rights reserved. © 2004 Cisco Systems, Inc. All rights reserved. Printed in USA. Presentation_ID.scr...
  • Page 31 C4K_L3HWFORWARDING-2-FWDCAMFULL HW adjacency table has 32K entries C4K_L3HWFORWARDING-3-NOMOREK2FIBADJS If table is not full…possibly a hardware issue...contact TAC • RST-3508 9805_05_2004_c2 © 2004 Cisco Systems, Inc. All rights reserved. © 2004 Cisco Systems, Inc. All rights reserved. Printed in USA. Presentation_ID.scr...
  • Page 32 C4500 A C4500 B Gig 5/1 Gig 5/2 Fas 3/1 Fas 3/3 20.2.1.0/24 10.5.1.2 10.6.1.2 Host A Host B RST-3508 9805_05_2004_c2 © 2004 Cisco Systems, Inc. All rights reserved. © 2004 Cisco Systems, Inc. All rights reserved. Printed in USA. Presentation_ID.scr...
  • Page 33 C4500 A C4500 B Gig 5/1 Gig 5/2 Fas 3/1 Fas 3/3 20.2.1.0/24 10.5.1.2 10.6.1.2 Host A Host B RST-3508 9805_05_2004_c2 © 2004 Cisco Systems, Inc. All rights reserved. © 2004 Cisco Systems, Inc. All rights reserved. Printed in USA. Presentation_ID.scr...

  • Page 34: Multicast Packet Forwarding

    10.6.1.2 Host A Host B RST-3508 9805_05_2004_c2 © 2004 Cisco Systems, Inc. All rights reserved. MULTICAST PACKET FORWARDING RST-3508 9805_05_2004_c2 © 2003, Cisco Systems, Inc. All rights reserved. © 2004 Cisco Systems, Inc. All rights reserved. Printed in USA. Presentation_ID.scr...

  • Page 35: Multicast Routing

    CGMP: enabled CGMP leave: disabled CGMP FastLeave: enabled No IGMP Snooping Support on Sup I/II RST-3508 9805_05_2004_c2 © 2004 Cisco Systems, Inc. All rights reserved. © 2004 Cisco Systems, Inc. All rights reserved. Printed in USA. Presentation_ID.scr...

  • Page 36: Multicast Features

    (STP, SPAN, PAgP, private VLANs,...) Full QoS support for multicast, 4 queues per port • All features done in hardware • RST-3508 9805_05_2004_c2 © 2004 Cisco Systems, Inc. All rights reserved. © 2004 Cisco Systems, Inc. All rights reserved. Printed in USA. Presentation_ID.scr...
  • Page 37 VLAN 3 Routed Port Gig 4/1 Switchport Gig 1/1 VLAN 201 202.202.202.100 Multicast Source Multicast Group 201.201.201.1 224.1.1.1 RST-3508 9805_05_2004_c2 © 2004 Cisco Systems, Inc. All rights reserved. © 2004 Cisco Systems, Inc. All rights reserved. Printed in USA. Presentation_ID.scr...
  • Page 38 VLAN 3 Routed Port Gig 4/1 Switchport Gig 1/1 202.202.202.100 VLAN 201 Multicast Source Multicast Group 201.201.201.1 224.1.1.1 RST-3508 9805_05_2004_c2 © 2004 Cisco Systems, Inc. All rights reserved. © 2004 Cisco Systems, Inc. All rights reserved. Printed in USA. Presentation_ID.scr...
  • Page 39 VLAN 201 Multicast Source Multicast Group 201.201.201.1 224.1.1.1 RST-3508 9805_05_2004_c2 © 2004 Cisco Systems, Inc. All rights reserved. ACLS RST-3508 9805_05_2004_c2 © 2003, Cisco Systems, Inc. All rights reserved. © 2004 Cisco Systems, Inc. All rights reserved. Printed in USA. Presentation_ID.scr...

  • Page 40: Types Of Acls

    VLAN 10 VLAN 20 PACL/MACL— Fa 4/1 Bridged Packet Routed Packet The above diagram is a logical model RST-3508 9805_05_2004_c2 © 2004 Cisco Systems, Inc. All rights reserved. © 2004 Cisco Systems, Inc. All rights reserved. Printed in USA. Presentation_ID.scr...
  • Page 41 QoS TCAM is used for QoS functions: Classification, • Service Policies *Supervisor Engine II-Plus as of IOS 12.2.18EW has 1/8 the TCAM entries RST-3508 9805_05_2004_c2 © 2004 Cisco Systems, Inc. All rights reserved. © 2004 Cisco Systems, Inc. All rights reserved. Printed in USA. Presentation_ID.scr...

  • Page 42: Port Numbers

    Greater than 6 L4 ops limit in an ACL…results in • ACE expansion or more TCAM entries being used http://www.cisco.com/univercd/cc/td/doc/product/lan/cat4000/12_2_18/config/secure.htm#1050515 RST-3508 9805_05_2004_c2 © 2004 Cisco Systems, Inc. All rights reserved. © 2004 Cisco Systems, Inc. All rights reserved. Printed in USA. Presentation_ID.scr...

  • Page 43: Mac Acls

    IP and drop all action forward Appletalk frames on match ip address ip2 VLAN 201 vlan filter vacl-100 vlan-list 201 RST-3508 9805_05_2004_c2 © 2004 Cisco Systems, Inc. All rights reserved. © 2004 Cisco Systems, Inc. All rights reserved. Printed in USA. Presentation_ID.scr...
  • Page 44 • packet size is greater than egress port MTU) TCAM full due to excessive L4 ops expansion • RST-3508 9805_05_2004_c2 © 2004 Cisco Systems, Inc. All rights reserved. © 2004 Cisco Systems, Inc. All rights reserved. Printed in USA. Presentation_ID.scr...
  • Page 45 Consider a Supervisor IV or V with larger TCAM • space than Supervisor II-Plus Mask allocation optimization is in latest IOS • release, 12.2.20 EW RST-3508 9805_05_2004_c2 © 2004 Cisco Systems, Inc. All rights reserved. © 2004 Cisco Systems, Inc. All rights reserved. Printed in USA. Presentation_ID.scr...
  • Page 46 Tiny fragments are dropped to prevent DOS attacks TOS/DSCP fields are not being matched correctly • Check the trust state of the port RST-3508 9805_05_2004_c2 © 2004 Cisco Systems, Inc. All rights reserved. © 2004 Cisco Systems, Inc. All rights reserved. Printed in USA. Presentation_ID.scr...

  • Page 47: Qos Terminology

    • transmit queues Scheduling is process of emptying the • transmit queues RST-3508 9805_05_2004_c2 © 2004 Cisco Systems, Inc. All rights reserved. © 2004 Cisco Systems, Inc. All rights reserved. Printed in USA. Presentation_ID.scr...
  • Page 48 By default a port state is untrusted • Ports can be set to have a default CoS on a • system-wide basis RST-3508 9805_05_2004_c2 © 2004 Cisco Systems, Inc. All rights reserved. © 2004 Cisco Systems, Inc. All rights reserved. Printed in USA. Presentation_ID.scr...
  • Page 49 System Wide CoS Queue Threshold CoS Mapping ----- --------- --------------- 0 1 2 3 4 5 6 7 RST-3508 9805_05_2004_c2 © 2004 Cisco Systems, Inc. All rights reserved. © 2004 Cisco Systems, Inc. All rights reserved. Printed in USA. Presentation_ID.scr...
  • Page 50 Sharing: Min rate per queue • Strict priority on queue 3 • All in hardware at wire rate • RST-3508 9805_05_2004_c2 © 2004 Cisco Systems, Inc. All rights reserved. © 2004 Cisco Systems, Inc. All rights reserved. Printed in USA. Presentation_ID.scr...

  • Page 51: Priority Queue

    Supported on ALL ports on Supervisor Engine V • Shaper (Specifies Max BW) Non-Blocking Port TX Port Q Sharer (Specifies Min Guaranteed BW) RST-3508 9805_05_2004_c2 © 2004 Cisco Systems, Inc. All rights reserved. © 2004 Cisco Systems, Inc. All rights reserved. Printed in USA. Presentation_ID.scr...
  • Page 52 Priority QueueSize (bps) (bps) (packets) 250000000 disabled 1920 250000000 disabled 1920 250000000 50000000 high 1920 250000000 disabled 1920 RST-3508 9805_05_2004_c2 © 2004 Cisco Systems, Inc. All rights reserved. © 2004 Cisco Systems, Inc. All rights reserved. Printed in USA. Presentation_ID.scr...

  • Page 53: Packet Classification And Marking

    Check class map statistics • The packet statistics are on a per-class-map basis, and • on a per-interface basis RST-3508 9805_05_2004_c2 © 2004 Cisco Systems, Inc. All rights reserved. © 2004 Cisco Systems, Inc. All rights reserved. Printed in USA. Presentation_ID.scr...
  • Page 54 Service Policy Used Port Applied to the VLAN Applied to the Port VLAN-Based VLAN Based Port-Based (Default) Port Based RST-3508 9805_05_2004_c2 © 2004 Cisco Systems, Inc. All rights reserved. © 2004 Cisco Systems, Inc. All rights reserved. Printed in USA. Presentation_ID.scr...
  • Page 55 If no output policy then input policy has precedence If no output/input policy then RX port trust is used RST-3508 9805_05_2004_c2 © 2004 Cisco Systems, Inc. All rights reserved. © 2004 Cisco Systems, Inc. All rights reserved. Printed in USA. Presentation_ID.scr...
  • Page 56 Output Policers 0.4) 1019 ( 99.5) 1024 *Above output from Supervisor IV/V; Supervisor II-Plus has half the entries RST-3508 9805_05_2004_c2 © 2004 Cisco Systems, Inc. All rights reserved. © 2004 Cisco Systems, Inc. All rights reserved. Printed in USA. Presentation_ID.scr...
  • Page 57 4.4.4.1 255.255.255.0 service-policy input pol_udp Use the Show Policy-Map Interface Command to Check for Class Map Hits RST-3508 9805_05_2004_c2 © 2004 Cisco Systems, Inc. All rights reserved. © 2004 Cisco Systems, Inc. All rights reserved. Printed in USA. Presentation_ID.scr...
  • Page 58 50 51 52 53 54 55 56 57 58 59 60 61 62 63 When the Rate Is Exceeded DSCP of 24 Is Marked Down to 16 RST-3508 9805_05_2004_c2 © 2004 Cisco Systems, Inc. All rights reserved. © 2004 Cisco Systems, Inc. All rights reserved. Printed in USA. Presentation_ID.scr...

  • Page 59: Output Policy

    Drop Drop Markdown Markdown Drop Markdown Markdown Mark Mark Drop Mark Mark The Most Severe Action Is Taken RST-3508 9805_05_2004_c2 © 2004 Cisco Systems, Inc. All rights reserved. © 2004 Cisco Systems, Inc. All rights reserved. Printed in USA. Presentation_ID.scr...
  • Page 60 2 Pkts FLOW CREDITS Classified NAF Max Credits 15 (Default) Aggressive Credit Limit 10 Time NAF: Non Adaptive Flow RST-3508 9805_05_2004_c2 © 2004 Cisco Systems, Inc. All rights reserved. © 2004 Cisco Systems, Inc. All rights reserved. Printed in USA. Presentation_ID.scr...
  • Page 61 0 class set ip dscp 0 class set ip dscp 16 class TELNET set ip dscp 48 RST-3508 9805_05_2004_c2 © 2004 Cisco Systems, Inc. All rights reserved. © 2004 Cisco Systems, Inc. All rights reserved. Printed in USA. Presentation_ID.scr...
  • Page 62 RST-3511: Troubleshooting LAN Protocols • RST-3509: Catalyst 6500 Troubleshooting • RST-3507: Catalyst 2900 and Catalyst 3500 • Troubleshooting RST-3508 9805_05_2004_c2 © 2004 Cisco Systems, Inc. All rights reserved. © 2004 Cisco Systems, Inc. All rights reserved. Printed in USA. Presentation_ID.scr...

  • Page 63: For More Information

    • resources for common error messages, CPU utilization, etc., and troubleshooting Troubleshooting Resources tools (e.g., TAC case collection) RST-3508 9805_05_2004_c2 © 2004 Cisco Systems, Inc. All rights reserved. © 2004 Cisco Systems, Inc. All rights reserved. Printed in USA. Presentation_ID.scr...
  • Page 64 (e.g., TAC Resources case collection) RST-3508 9805_05_2004_c2 © 2004 Cisco Systems, Inc. All rights reserved. Q AND A RST-3508 9805_05_2004_c2 © 2003, Cisco Systems, Inc. All rights reserved. © 2004 Cisco Systems, Inc. All rights reserved. Printed in USA. Presentation_ID.scr...

  • Page 65: Recommended Reading

    Convention Center HOW: Winners will be posted on the onsite Networkers Website; four winners per day RST-3508 9805_05_2004_c2 © 2004 Cisco Systems, Inc. All rights reserved. © 2004 Cisco Systems, Inc. All rights reserved. Printed in USA. Presentation_ID.scr...
  • Page 66 RST-3508 9805_05_2004_c2 © 2003, Cisco Systems, Inc. All rights reserved. © 2004 Cisco Systems, Inc. All rights reserved. Printed in USA. Presentation_ID.scr...

This manual is also suitable for:

Catalyst 4000Catalyst 4500

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