BCC. Stefan Wahl Niels Bakker Elisa Jasinska Maxim Salomon
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1
2 BCC Stefan Wahl Niels Bakker Elisa Jasinska Maxim Salomon
3 Planned Network
4 Realized Network
5 Detailed Network G60
6 Alboinkontor (Speedbone)
7 Lützowstrasse 105/106
8 BCC
9 BGP Uplinks Used Uplinks AS174 AS248 AS286 CogentCo 23C3 KPN Eurorings AS5430 Freenet (IPv6) AS8881 Versatel AS9033 ECIX DUS AS12732 D-Hosting AS25074 Mesh
10 BGP Changes during Congress RIPE Tools Marks für /16 Starting announcement Versatel :21 KPN :29 CogentCo :00 Prepending as :42
11 Bandwidth Real Bandwidth CogentCo 0400Mbps KPN Eurorings 1000Mbps Versatel 1000Mbps D-Hosting 0600Mbps Average Out 1.6Gbps (>50%) In 0.6Gbps (<20%)
12 KPN Eurorings
13 CogentCo
14 Versatel
15 D-Hosting
16 Total Uplink
17 Issues Uplink per ISP > 1 GE physical Port Balancing load over IP Uplink Getting bigger Ports Core Router/Switch in BCC No redundancy Core Routers Off Site Simpler Setup Taking down the network takes a few days Insurance
18 Outlook CAMP 2007 Fiber to the Camp (FttC) GE (10GE) IP Uplink Distribution Layer
19
20 BCC Network Agenda Network Diagrams Catering for Special Interest Groups Hardware Used Outages and Other Trouble Pretty Graphs
21 <visitor> wireless or cable <internet> Layer 9
22 Internet?xG D-Level / Special Interest / :4ce8:23c3: ::/64 Versatel AS8881 5G Upstream 1G Wireless / :4ce8:23c3:1096::/ ,108.0/ :4ce8:23c3:1104,1108::/64 m10 10G+1G 1G RX8 8x1G 10G C-Level / :4ce8:23c3: ::/64 Hack center / :4ce8:23c3: ::/64 10G 5x1G 11x1G B-Level / :4ce8:23c3: ::/64 Layer 3
23 DF DF server park wall sockets D-Level E300 m10 10G 1G RX8 10G S HP 10G 11x2626 C-Level 8xC3524 Cisco wall sockets C-Level 2948 HP 16x2626 A-Level E300 10G 11x1G 5x1G 2948 HP 11x2626 B-Level Colo server park S50 3xC3524 2xC3548 Cisco wall sockets B-Level Layer 2
24 Layer 1
25 Upstream (Stefan) server park wireless?xutp 1xMMDF LS RX8 DF Versatel AS8881 2xMMDF 6xMMDF 8xMMDF 2xMMDF 16xUTP 16xUTP 12xUTP 16xUTP?xUTP D57 (6 usable) 12xMMF (15 usable) 24xUTP (18 usable) 24xMMF (10 usable) 24xUTP 6xMMF (12 usable) 24xUTP 12xMMF 20xUTP 12xMMF MMDF 2xMMDF MMDF LX 4xMMDF ER MMDF MMDF E300 8x3524 <96xUTP 15xUTP <131xUTP 16xUTP <96xUTP?xUTP 12xUTP A87 A85 B90.01 C57 C91 104xUTP 259xUTP 214xUTP 130xUTP 76xUTP 12xMMF 12xMMF 24xMMF 12xMMF 12xMMF 24xUTP 24xUTP 24xUTP 24xUTP 72xUTP A85 A87 B90.01 C57 C91 B90.01 C57 C90.01,C91 A85 D01..hofseit. SMDF m10 D57 D57 D57 D57 D57 D57 D57 D57 D57 D57 SMDF SMDF MMDF MMDF 4xMMDF MMDF console E300 12xMMF 2x3524 2x3548 S50 console server 10xUTP A87 A85 B90.01 C57 C91 D57 4xUTP n room outl 2 B11 2 A08 10 N/C sw wl n 12 room A01 28 A02 4 A A03 6 A04 6 A05 6 A06 4 A07 6 A08 2 A10 4 A33 6 A44 2 A81 4 B B N/C outl N/A sw wl n 36 room B01 4 B B B B02 4 B03 6 B04 1 B05 1 B08 N/A 12 B10 2 B18 2 B19 4 B80 4 B B81 8 B82 N/A 10 B83 outl N/A N/A N/A N/A N/A N/A sw wl n 17 room B05 2 B B06 3 B07 13 B08 19 B09 50 C01 50 C02 22 C19 4 C51 2 C54 2 C83 2 C84 2 C85 4 C86 4 fassad. 8 acces. outl sw wl n 6 room C03 6 C04 66 C90 52 D90 38 N/C outl N/A N/A sw wl n 4 room C D01 4 D50 4 D52 6 D54 6 D57 34 kuppel 2 dach 1 alex.st. 1 hofseit. 10 N/C outl sw wl
26 Special Interest Groups Colocation Freifunk (OLSR) Sputnik (RFID) cbase fiber & wireless link
27 Colocation Area
28 Server Park
29 Patches D57
30 Patches C57
31 Patches C57
32 Patches A85
33 Network A87
34 Network A87 - CWDM
35 S50 The Movie
36 Core Router
37 Links 3 x 10GE-SR 1 x 10GE-ER 14 x 1000baseSX 1 x 1000baseLX ± baseT ± 3,000 10baseT/100baseTX ports 1 x 10base2 coax
38 Issues & Outages Late Hardware Deliveries Force10 Servers
39 Outages & Issues Core Router Broken Switch Fabric Module High CPU load on linecards Out of IPv4 next-hop memory space
40 SFM central-services#power-on snm 2 Power on SNM2. rw_power_on_snm: write ff to RW_MBRIDGE_CARD_POWER_OFF_REG *** SNM 2 POST diags *** FE 0 access passed; FE 0 Serdes PRBS Loopback passed FE 0 multicast distribution table passed [...] FE200 slot 0 fe 2 Serdes 60 prbs loopback failed FE 1 multicast distribution table passed FE 2 access passed; Error:rw_power_on_snm: SFM POST diags failed for SNM 2 central-services# SYSLOG: Dec 28 22:28:44:<189>central-services, BGP Peer 2001:4ce8::3 DOWN (Hold Timer Expired)
41 LP CPU cpu lp SLOT #: LP CPU UTILIZATION in %: in 1 second: in 5 seconds: in 60 seconds: in 300 seconds: 1: : : : : : : : SSH@central-services#
42 Nexthop INFO: Out of nexthop entries for path count 1 on slot 2.
43 Nexthop 1 Connecting to slave CPU 1/1... (Press Ctrl-Shift-6 X to exit) rconsole-1/1@lp>ena No password has been assigned yet... rconsole-1/1@lp#sh ip nexthop Paths Total Free In-use
44 Nexthop Workaround: Kill ARP sponge to free up resources on all linecards Conversation with supplier is ongoing ip next Paths Total Free In-use
45 Graphs! - Core Traffic
46 Graphs! - IPv6
47 Graphs! - A Level
48
49 1003 Mbps incoming 1675 Mbps outgoing
50 Peak Traffic IPv6: 6.6%
51
52 Wireless LAN 23C3 Agenda 22C3 Recall Preparation & Design Topology Performance & Security Monitoring for Station Troubleshooting Statistics Outlook 2007 & Thanks...
53 Wireless LAN 22C3 Recall 36 Single Mode Access Points Low density a 2400 Aruba Switch = 512 Max Users User peak 509!= Average 350 Performance Issues (QoS) Rogue Access Points
54 Wireless LAN 23C3 Preparation & Design Location Planning Autocad Backbone Design Separation QoS Snort, Shaping Security ACL, Fuzzying, Load tests
55
56 Wireless LAN 23C3 Topology
57 Wireless LAN 23C3 Setup Performance Calibration Channel Setup Load Balancing Traffic Shaping
58 Wireless LAN 23C3 Security Access Lists L2 Frame Monitoring Rogue AP prevention Gateway protection
59 Monitoring for Troubleshooting
60 Wireless LAN 23C3 Statistics
61 Wireless LAN 23C3 Statistics 1-2d Max Assocs 1678, Average 631, Current was d Max Assocs 1423, Average 633, Current was d Max in Mb/s, Max out 30.9 Mb/s 3-4d Max in Mb/s, Max out 32.1 Mb/s
62 Wireless LAN 23C3 Outlook Protect users with a bridge filter? Provide 5 GHz Cards? USE a 5 GHz!!! Thanks to Aruba Networks, Luiz
63
64 Thank You!
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