Brocade MLX Series and Brocade NetIron XMR Diagnostic Guide ...

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4Spanning Tree Protocol and derivativesSTP debug commandsThis section describes the debug commands for STP, MSTP, and RSTP environments.CAUTIONEnabling diagnostic commands may degrade system performance. These commands are bestused to troubleshoot specific problems while working with qualified Brocade service technicians.Whenever possible, troubleshoot your system during periods of low network traffic and useractivity to preserve system performance.NOTEBecause STP and RSTP debug commands are virtually identical, only STP commands are describedin detail in this chapter.debug spanning-treeSyntax: [no] debug spanning-tree [config-bpdu | event | port [ethernet | pos] | reset | show | tcn-bpdu | verbose | vlan ]This command generates information about all BPDUs and spanning tree events (by default) orspecific events as defined by the variables shown in the syntax line. In many cases, genericdebugging is not useful. If multiple STP instances are configured, it can be difficult to identifycontent for a specific instance from the extensive output that may be generated. Use the debugspanning-tree port and debug spanning-tree vlan commands to define specific instances fordebugging.• config-bpdu - Generates information about STP configuration bridge protocol data units(BPDUs).• event - Generates information about STP non-BPDU events (timer, configuration, and so on).• port - Restricts STP debugging to specific ports.• ethernet - Restricts STP debugging to a specific Ethernet interface.• pos - Restricts STP debugging to a specific POS interface.• reset - Resets all STP debugging parameters to the default.• show - Displays current STP debug settings.• tcn-bpdu - Enables or disables STP TCN BPDU debugging.• verbose - Enables or disables STP verbose debugging mode.• vlan - Restricts STP debugging to specific VLAN.This command generates information about all STP activity and events. Command outputresembles the following example.Brocade# debug spanning-treeSTP: debugging is onSTP: Sending Config BPDU - VLAN 3 Port 2/30000 00 00 00 800000000001c042 00000000800000000001c042 8043 0000 0000 0000 0000STP: Sending Config BPDU - VLAN 3 Port 2/40000 00 00 00 800000000001c042 00000000800000000001c042 8044 0000 0000 0000 0000STP: Sending Config BPDU - VLAN 2 Port 2/188 Brocade MLX Series and Brocade NetIron XMR Diagnostic Guide53-1002426-02
Spanning Tree Protocol and derivatives 4debug spanning-tree config-bpduSyntax: [no] debug spanning-tree config-bpduThis command generates information about STP BPDUs. Command output resembles the followingexample.Brocade# debug spanning-tree config-bpduSTP: Received Config BPDU - VLAN 10 Port 3/200000 00 00 01 80000012f23d8500 0000000080000012f23d8500 8050 0000 1400 0200 0f00STP: Received Config BPDU - VLAN 10 Port 3/200000 00 00 01 80000012f23d8500 0000000080000012f23d8500 8050 0000 1400 0200 0f00STP: Received Config BPDU - VLAN 10 Port 3/200000 00 00 01 80000012f23d8500 0000000080000012f23d8500 8050 0000 1400 0200 0f00STP: Received Config BPDU - VLAN 10 Port 3/200000 00 00 01 80000012f23d8500 0000000080000012f23d8500 8050 0000 1400 0200 0f00debug spanning-tree eventSyntax: [no] debug spanning-tree eventThis command displays information about non-BPDU events, such as timer, configuration, and soon. Command output resembles the following example.Brocade# debug spanning-tree eventSTP: LISTENING - VLAN 10 Port 3/20STP: LEARNING - VLAN 10 Port 3/20STP: Sending TCN BPDU - VLAN 10 Port 3/20STP: FORWARDING - VLAN 10 Port 3/20STP: TCN ACK Received - VLAN 10 Port 3/20debug spanning-tree portSyntax: [no] debug spanning-tree port [ethernet | pos ]This command displays spanning tree information about a port for a specific interface. Commandoutput resembles the following example.Brocade# debug spanning-tree port ethernet 2/2STP debugging turned on for ports ethe 2/255 STP: Sending Config BPDU - VLAN 2 Port 2/255 0000 00 00 00 800000000001c040 00000000800000000001c040 8042 0000 0000 0000 0000STP: Sending Config BPDU - VLAN 2 Port 2/20000 00 00 00 800000000001c040 00000000800000000001c040 8042 0000 0000 0000 0000STP: Sending Config BPDU - VLAN 2 Port 2/20000 00 00 00 800000000001c040 00000000800000000001c040 8042 0000 0000 0000 0000STP: Sending Config BPDU - VLAN 2 Port 2/20000 00 00 00 800000000001c040 00000000800000000001c040 8042 0000 0000 0000 0000debug spanning-tree resetSyntax: [no] debug spanning-tree resetThis command resets all STP debugging parameters to the default. The default mode disables allSTP debugs. The show debug command will no longer show STP debug as enabled. This commandworks in the same way as the no debug spanning-tree command.Brocade MLX Series and Brocade NetIron XMR Diagnostic Guide 8953-1002426-02
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53-1002426-0216 April 2012®Brocade
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IS-IS . . . . . . . . . . . . . . .
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Port loop detection . . . . . . . .
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About This DocumentThis manual desc
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NOTEA note provides a tip, guidance
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Using Diagnostic CommandsChapter1Ho
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Generic debug commands 1show debugS
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System and System Management Diagno
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Basic system information 2Boot : Ve
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Basic system information 2show whoS
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Basic system information 2LP APP :
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TCAM partitioning and usage 2Table
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TCAM partitioning and usage 2Subpar
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TCAM partitioning and usage 2Config
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Managing memory and CPU usage 2•
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Managing memory and CPU usage 2Tota
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Managing memory and CPU usage 2ff f
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Management module diagnostics 2FE (
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Management module diagnostics 200A)
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Management module diagnostics 2Comm
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Interface module diagnostics 2NOTEB
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Interface module diagnostics 2TABLE
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Interface module diagnostics 2Broca
Page 53 and 54: Interface module diagnostics 2(3870
Page 55 and 56: IPC diagnostics 2u_specific reply 0
Page 57 and 58: IPC diagnostics 2Unreliable TX : 1:
Page 59 and 60: ITC diagnostics 20x0130011 - 2 - 0s
Page 61 and 62: Switch fabric modules 2Brocade# sho
Page 63 and 64: Power supplies, fans, and temperatu
Page 65 and 66: Power supplies, fans, and temperatu
Page 67 and 68: Fiber optic modules 2If none of the
Page 69 and 70: Fiber optic modules 2==============
Page 71 and 72: Testing network connectivity 2Fiber
Page 73 and 74: Layer 1 DiagnosticsChapter3This cha
Page 75 and 76: Ethernet diagnostics 3Unidirectiona
Page 77 and 78: Link fault signaling 3A CRC alignme
Page 79 and 80: Packet over SONET modules 3Path Tra
Page 81 and 82: Packet over SONET modules 3NP Ingre
Page 83 and 84: Packet over SONET modules 3Brocade#
Page 85 and 86: 802.1ag CFM for VPLS debug commands
Page 87 and 88: 802.1ag CFM for VPLS debug commands
Page 89 and 90: Layer 2 Protocol DiagnosticsChapter
Page 91 and 92: MAC address learning 4show mac vpls
Page 93 and 94: MAC address learning 4debug ip arp
Page 95 and 96: MAC address learning 4Brocade# debu
Page 97 and 98: Super Aggregated VLANs 4show vlanSy
Page 99 and 100: MRP 4vlan 1000tagged ethe 3/1End us
Page 101 and 102: MRP 4Dec 10 17:24:35 mrprhp_receive
Page 103: Spanning Tree Protocol and derivati
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Page 109 and 110: LACP trunking 4• When you enable
Page 111 and 112: LACP trunking 4Trunk formation rule
Page 113 and 114: UDLD 4show link-keepalive ethernetS
Page 115 and 116: VSRP 4VLAN Translation debug comman
Page 117 and 118: VSRP 4In this example, VRID 5 is in
Page 119 and 120: VPORT Scaling 4VPORT ScalingVirtual
Page 121 and 122: LLDP 4Nov 17 19:30:08 LLDP event :
Page 123 and 124: Layer 3 Protocol DiagnosticsChapter
Page 125 and 126: BFD 5Clearing BFD neighbor sessions
Page 127 and 128: BFD 5Total number of Neighbor entri
Page 129 and 130: BGP 5Common diagnostic scenarios•
Page 131 and 132: BGP 5BGP_ROUTE_DAMPING_REUSE_LIST:
Page 133 and 134: BGP 5bgp_check_update TOTAL=0 FREQ=
Page 135 and 136: BGP 5show ip rtmSyntax: show ip rtm
Page 137 and 138: BGP 5debug ip bgp graceful-restartS
Page 139 and 140: BGP 5debug ip bgp route-mapSyntax:
Page 141 and 142: BGP 5Dec 10 15:04:15 ICMPv6-ND: Sen
Page 143 and 144: BGP 5OSPFv3 ISM (137): Status chang
Page 145 and 146: BGP 5Brocade(config)# no router bgp
Page 147 and 148: OSPF 5show ip ospf configSyntax: sh
Page 149 and 150: OSPF 5show ip ospf areaSyntax: show
Page 151 and 152: OSPF 5show ip ospf redistribute rou
Page 153 and 154: OSPF 5show ip ospf database link-st
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OSPF 5hostname R11-RX8router ospfar
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OSPF 5Pool Id = 7, Total Mega block
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OSPF 5Clearing OSPF neighborsYou ca
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OSPF 5debug ip ospf errorSyntax: [n
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OSPF 5OSPF: send_grace_ls to 224.0.
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OSPF 5debug ip ospf log-empty-lsaSy
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OSPF 5debug ip ospf sham-linkSyntax
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RPF 5• If you disable OSPF, the B
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RPF 5ref count: 1, set id: 0x2c7dbb
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IS-IS 5• The following considerat
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IS-IS 5IP Enabled: TRUEIP Address a
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IS-IS 5Command output resembles the
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IS-IS 5total_memory_allocated_for_t
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IS-IS 5show isis debug pent-level-i
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IS-IS 5show isis debug v6route-info
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IS-IS 5debug isis l1-csnpSyntax: [n
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IS-IS 5debug isis pp-helloSyntax: [
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IS-IS 5ISIS: The Pent Already exist
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IS-IS 5• An IS-IS link is experie
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VRRP and VRRP-E 5• ethernet / - S
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VRRP and VRRP-E 5. received packets
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VRRP and VRRP-E 5Clearing VRRP-E st
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VRRP and VRRP-E 5Configuration note
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MPLS DiagnosticsChapter6This chapte
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MPLS 6Id SubId GenSize BlockSize Ge
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MPLS 6This command displays RSVP se
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MPLS 6TTL 255, TOS 0, NHT 1, MTU 14
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MPLS 6Last down threshold triggerLa
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MPLS API 6debug mplsSyntax: [no] de
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MPLS API 6MPLS API debug commandsTh
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MPLS API 6debug mpls cspf computati
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MPLS API 6Dec 10 00:51:04 MPLS: CSP
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MPLS API 6Dec 10 00:59:58 RSIR: CSP
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MPLS API 6debug mpls rsvpSyntax: [n
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MPLS API 6Dec 10 01:03:26 Dest 7.7.
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MPLS API 6Dec 10 01:08:36 Flgs 0x0X
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MPLS API 6• rsvp - Displays label
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MPLS API 6Nov 21 02:42:51 VLL_Peer_
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MPLS LDP 6MPLS LDPBrocade devices s
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MPLS LDP 6Brocade# show mpls ldp se
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MPLS LDP 6show mpls ldp fec vcSynta
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MPLS LDP 6Dec 10 01:26:37 LDP SC 1
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MPLS LDP 6LDP PM 1 UM FSM, CB 164/2
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MPLS LDP 6LDP um 0d9098c8 fec 11.11
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MPLS VPLS 6debug mpls ldp tcpdumpSy
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MPLS VPLS 6show mac vplsSyntax: sho
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MPLS VPLS 6show mpls debug vpls loc
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MPLS VPLS 6• dy-sync - Displays i
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MPLS VPLS 6VPLS DY-SYNC-LOC: mpls_v
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MPLS VPLS 6Brocade# debug vpls even
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MPLS VPLS 6debug vpls genericSyntax
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MPLS VPLS 6Common diagnostic scenar
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ACL and QoS DiagnosticsChapter7This
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ACLs 7show access-list subnet-broad
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ACLs 7Brocade# debug access-list ac
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ACLs 7debug access-list lsp-out-acl
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ACLs 7May 02 15:26:38 LSP-OUT-ACL:
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ACLs 7PBR_VLAN_PRESERVE 0USE TOS ID
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ACLs 7Brocade# debug ipv6 access-li
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QoS 7QoSQuality of Service (QoS) fe
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QoS 7show qos-mapSyntax: show qos-m
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QoS 7show tm port-mappingSyntax: sh
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QoS 7NP Rx IPv6 RPF Drop Count = (0
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Traffic management 7Traffic managem
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Traffic management 7Brocade# show t
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Multicast DiagnosticsChapter8This c
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DVMRP 8Interface v40TTL Threshold:
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DVMRP 8debug ip pim-dvmrp add-del-o
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IGMP V2 and V3 8Brocade# show ip ig
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IGMP V2 and V3 8Brocade# show ip ig
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Multicast 8This issue is resolved b
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Multicast 83 Source: (158.158.158.1
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Multicast 8clear ip multicastSyntax
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MSDP 8Brocade# show ip msdp peerTot
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MSDP 8Brocade# debug ip msdp events
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PIM DM and PIM SM 8The Brocade devi
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PIM DM and PIM SM 8Brocade# show ip
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PIM DM and PIM SM 8Brocade# show ip
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PIM DM and PIM SM 8• If you want
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Security DiagnosticsChapter9This ch
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802.1x 9TX EAP Req other than Req/I
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802.1x 9Brocade# show dot1x mac-ses
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802.1x 9: 802.1X: port 4/1 BkEnd BK
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802.1x 9debug dot1x faultSyntax: [n
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Denial of Service attacks 9802.1X:
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Port loop detection 9show loop-dete
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Port mirroring and monitoring 9Port
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RADIUS 9Brocade# show aaaTacacs+ ke
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SNMP 9sFlow debug commandsThere are
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TACACS and TACACAS+ 9TACACS and TAC
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TACACS and TACACAS+ 9**Radius timer
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Telnet and SSH connections 9Brocade
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NTP 9Syntax: [no] clock summer-time
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NTP 9Number of NTP packets failed t
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IP security 9Oct 19 18:37:49 Leap 0
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IP security 9debug ipsec policySynt
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Forwarding DiagnosticsChapter10This
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Multicast VRF 10:Brocade# show ipv6
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Multicast VRF 10debug ip ospf all-v
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Trunking 10Port Names none nonePort
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MCT 10The following command output
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MCT 10Nov 23 08:39:03 CLUSTER CONFI
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MCT 10Nov 23 08:40:29 CLUSTER FSM:
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VPLS unicast forwarding 10SYSLOG: D
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GRE and IPv6 tunnels 10Common diagn
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GRE and IPv6 tunnels 10Normal keepa
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LP CPU packet statistics 10This com
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LP CPU packet statistics 10TABLE 6F
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LP CPU packet statistics 10TABLE 7
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LP CPU packet statistics 10TABLE 7
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LP CPU packet statistics 10Brocade#
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LP CPU packet statistics 10TABLE 9F
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Software Licensing DiagnosticsChapt
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NETCONFChapter12Network Configurati
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NETCONF 12NETCONF: parser debugging
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Diagnostic Command IndexCcam-partit
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debug iptunnel keepalives, 348debug
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show cam-partition usage, 15show ch
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show mpls vpls detail, 228show mpls
show all

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