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

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2Managing memory and CPU usageshow bm-dump-mode holdSyntax: show bm-dump-mode holdIf a buffer leak is suspected, use the show bm-dump-mode hold command to help locate thesource of the leak, as shown in the following example.Brocade# show bm-dump-mode holdBuffer-ID Second Dir Hold Application43636ac 60602 rx 1 o4362ecc 60585 tx 1 1436298c 60585 tx 1 1435fcec 60585 tx 1 1436f10c 60585 tx 1 1436c18c 60585 tx 1 1436a4ec 60394 tx 1 1436bc8c 60387 tx 1 143769cc 60369 tx 1 143747ac 110 rx 1 0show bm holdSyntax: show bm holdThis command displays hold buffer usage information. Command output resembles the followingexample.Brocade# show bm holdBuffer-ID Second Dir Hold Application43636ac 60602 rx 1 04362ecc 60585 tx 1 1436298c 60585 tx 1 1435fcec 60585 tx 1 1436f10c 60585 tx 1 1436d18c 60585 tx 1 1436a4ec 60394 tx 1 1436bc8c 60387 tx 1 143769cc 60369 tx 1 143747ac 110 rx 1 0show bm-overflowSyntax: show bm-overflow [start | stop]The command stops or starts buffer overflow monitoring.This command displays buffer overruns, and is enabled by default. Output from this commandresembles the following example, where non-cpu overflow indicates that the corruption was due tothe monitor code and not the application code.Brocade# show bm-overflowDABR Watch disabled, DABR disabled because no overflow detected yet.Info for first overflowbufptr = 0x29558800 payload = 0x2955810 sig_ptr = 0x2955ffc sig = 0x1234eeeepid = 3 len = 1500 ref = 1 appl_ref = 1 pri = 0 flags = 0x0Buf Alloc Stack:Call Stack:
Managing memory and CPU usage 2ff ff ff ff ff ff ff ff-ff ff ff ff ff ff ff ffb3 fa 00 00 00 00 00 04-00 00 00 00 00 11 81 00. . .Prev Buf Dataprev_bufptr = 0x2955000 prev_payload = 0x2955030 prev_sig_ptr = 0x29557fc prev_sig= 0x1234eeee prev_pid = 3 len = 1968Prev Buf Alloc Stack:Prev Buf Data:00 00 00 00 00 04 00 00-00 00 00 11 81 00 00 0a0a 00 73 6e ff ff ff ff-ff ff 00 29 ff ff ff ffff ff ff ff ff ff ff ff-ff ff ff ff ff ff ff ffad 4c 0f 16 00 00 4b 16-00 00 00 00 00 04 81 0000 0a 0a 00 36 ba 00 00-00 00 00 00 00 00 00 00. . .next_bufptr = 0x29560000 next_payload = -x2956032 next_sig_ptr = -x29567fcnext_sig = 0x1234eeee next_pid = 3 len = 88Next Buf Alloc Stack:Next Buf Data:00 00 00 00 00 04 00 00-00 00 00 11 81 00 00 0a0a 00 d9 d6 ff ff ff ff-ff ff 00 33 ff ff ff ffff ff ff ff ff ff ff ff-ff ff ff ff ff ff ff ff35 95 00 00 00 00 00 04-00 00 00 00 00 11 81 00. . .Info for non-cpu overflow:Bufptr = NULLpre_bufptr = NULLnext_bufptr = NULLInfo for DABR hit:bufptr = 0x2955800 payload = 0x2955810 sig_ptr = 0x2955ffc sig = 0x123 pid = 3len = 1500 ref = 0 appl_ref = 0 pri = 0 flags = 0x0Configuration notesSeveral things can affect the memory in the Brocade NetIron XMR and Brocade MLX series device:• When you change the table size for a parameter, device memory is reconfigured. Whenmemory is reconfigured, you must save the change to the startup configuration file, and thenreload the software for the change to take effect.• Because Border Gateway Protocol version 4 (BGP4) can handle a very large number of routes,it requires a great deal of memory. In a typical configuration with a single BGP4 neighbor, aBGP4 router may need to hold up to 150,000 routes. Many configurations, especially thoseinvolving more than one neighbor, can require the router to hold even more routes. BrocadeNetIron XMR and Brocade MLX series devices provide dynamic memory allocation for BGP4data by automatically allocating memory when needed to support BGP4 neighbors, routes, androute attribute entries. Dynamic memory allocation is performed automatically by the softwareand does not require a reload.• As a guideline, the Brocade NetIron XMR and Brocade MLX series devices with a 2-GBmanagement module can accommodate 150 to 200 neighbors, with the assumption that thedevice receives a total of about one million routes from all neighbors and sends a total of abouteight million routes to neighbors. For each additional one million incoming routes, the capacityfor outgoing routes decreases by about two million.Brocade MLX Series and Brocade NetIron XMR Diagnostic Guide 2353-1002426-02
Page 1 and 2: 53-1002426-0216 April 2012®Brocade
Page 9 and 10: IS-IS . . . . . . . . . . . . . . .
Page 11 and 12: Port loop detection . . . . . . . .
Page 13 and 14: About This DocumentThis manual desc
Page 15 and 16: NOTEA note provides a tip, guidance
Page 17 and 18: Using Diagnostic CommandsChapter1Ho
Page 19 and 20: Generic debug commands 1show debugS
Page 21 and 22: System and System Management Diagno
Page 23 and 24: Basic system information 2Boot : Ve
Page 25 and 26: Basic system information 2show whoS
Page 27 and 28: Basic system information 2LP APP :
Page 29 and 30: TCAM partitioning and usage 2Table
Page 31 and 32: TCAM partitioning and usage 2Subpar
Page 33 and 34: TCAM partitioning and usage 2Config
Page 35 and 36: Managing memory and CPU usage 2•
Page 37: Managing memory and CPU usage 2Tota
Page 41 and 42: Management module diagnostics 2FE (
Page 43 and 44: Management module diagnostics 200A)
Page 45 and 46: Management module diagnostics 2Comm
Page 47 and 48: Interface module diagnostics 2NOTEB
Page 49 and 50: Interface module diagnostics 2TABLE
Page 51 and 52: 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
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MAC address learning 4show mac vpls
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MAC address learning 4debug ip arp
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MAC address learning 4Brocade# debu
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Super Aggregated VLANs 4show vlanSy
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MRP 4vlan 1000tagged ethe 3/1End us
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MRP 4Dec 10 17:24:35 mrprhp_receive
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Spanning Tree Protocol and derivati
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Page 107 and 108:
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LACP trunking 4• When you enable
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LACP trunking 4Trunk formation rule
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UDLD 4show link-keepalive ethernetS
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VSRP 4VLAN Translation debug comman
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VSRP 4In this example, VRID 5 is in
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VPORT Scaling 4VPORT ScalingVirtual
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LLDP 4Nov 17 19:30:08 LLDP event :
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Layer 3 Protocol DiagnosticsChapter
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BFD 5Clearing BFD neighbor sessions
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BFD 5Total number of Neighbor entri
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BGP 5Common diagnostic scenarios•
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BGP 5BGP_ROUTE_DAMPING_REUSE_LIST:
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BGP 5bgp_check_update TOTAL=0 FREQ=
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BGP 5show ip rtmSyntax: show ip rtm
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BGP 5debug ip bgp graceful-restartS
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BGP 5debug ip bgp route-mapSyntax:
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BGP 5Dec 10 15:04:15 ICMPv6-ND: Sen
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BGP 5OSPFv3 ISM (137): Status chang
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BGP 5Brocade(config)# no router bgp
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OSPF 5show ip ospf configSyntax: sh
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OSPF 5show ip ospf areaSyntax: show
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OSPF 5show ip ospf redistribute rou
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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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