AMS-IX version 4. Migration to an MPLS/VPLS based platform. Apricot 2010 March Henk Steenman Monday, March 1, 2010
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1 AMS-IX version 4 Migration to an MPLS/VPLS based platform Henk Steenman Henk.Steenman@ams-ix.net Apricot 2010 March
2 Overview AMS-IX version 3 Short overview Bottlenecks and limitations AMS-IX version 4 The MPLS/VPLS platform AMS-IX v3 to v4 migration Current status
3 NIKHEF SARA eunetworks GlobalSwitch Telecity Equinix pxc-nik-116 pxc-nik-112 pxc-nik-108 pxc-nik-104 pxc-nik-103 pxc-sar-114 pxc-sar-111 pxc-sar-102 pxc-sar-101 pxc-eun-113 pxc-glo-117 pxc-glo-109 pxc-glo-107 pxc-tel-115 pxc-tel-110 pxc-tel-106 pxc-tel-105 pxc-eqx-118 stub-nik-214 stub-nik-211 stub-nik-314 stub-nik-311 stub-sar-222 stub-sar-322 stub-eun-215 stub-eun-315 stub-glo-219 stub-glo-319 stub-tel-220 stub-tel-320 stub-eqx-218 stub-eqx-318 core-eun-301 core-glo-201 edge-sar-001 edge-sar-001 BI15000 BI15000 edge-nik-003 edge-nik-003 BI15000 BI15000 edge-eun-014 edge-glo-007 BI15000 edge-tel-005 edge-tel-005 BI15000 BI15000 edge-eqx-015 June 2009 situation before start of migration AMS-IX version 3
4 AMS-IX version 3 Characterization Two networks: one active at any moment in time Selection of active network by VSRP (Brocade proprietary Inactive network core-switch blocks ports to prevent loops PSCD, photonic switch control daemon AMS-IX developed software to act on VSRP traps and manage PXCs
5 AMS-IX version 3 Characterization E, FE and (N *) GE connections on BI-15k or RX8 switches (N * ) connections resilient connected on switching platform ( or ) via PXCs Brocade port security on customer interface to enforce one MAC per port rule for loop prevention
6 AMS-IX customer traffic Daily and yearly traffic Aug 2009
7 9:8756:/"*+;"<6.;:/7.;"=>875?.6"<5678" #!!" 3"45678" '#!" '!!" &#!" &!!" %#!" BA" $!BA" $!BA"C5+D"7.6?"<6.;:/E5+" '!F$!!BA" $#!" $!!" #!"!" $()*+(,," $()*+(!!" &$(-./(!!" &$(-./(!$" &$(-./(!%" &$(-./(!&" &!(-./(!'" &!(-./(!#" &!(-./(!0" &!(-./(!1" %,(-./(!2" %,(-./(!," %,(-./($!" %,(-./($$" %2(-./($%" Long Term 10 and 40/100G customer Port Predictions Traffic and Port Prognoses
8 AMS-IX version 3 Bottlenecks and Limitations Core switches (, 128 line rate) fully utilized Limits ISL upgrade Summer 2009 no substantial bigger switches on the market Platform failover introduces short link-flap on all customer ports. In few (but increasing) cases this leads to BGP flapping With more and more customer ports (268 June 2009) impact on overall platform stability becomes larger and larger Growth of number of 10G connections and customer LAG size requires larger switches Smaller switches => less local switching => larger ISL trunks
9 AMS-IX version 4 An MPLS/VPLS based Exchange platform
10 AMS-IX version 4 Requirements Scale the core to at least double amount of ports (Q2/3 2009) Keep resilience in platform and but reduce impact on failover. Increase amount of customer ports on switches More local switching Migrate to single architecture platform Reduce management overhead Use future proof (3 to 5 years) hardware that allows upscaling to high-density (2010) and 40/100GE (end 2010, early 2011)
11 Complete MPLS/VPLS topology AMS-IX version 4 GlobalSwitch pxc-sar-101 pxc-sar-102 SARA pxc-sar-111 pxc-tel-105 pxc-tel-106 Telecity pxc-tel-110 pxc-nik-103 pxc-nik-104 pxc-nik-108 NIKHEF pxc-nik-112 pxc-sar-114 pxc-tel-115 pxc-eun-113 eunetworks pxc-glo-107 pxc-glo-109 pxc-glo-117 pxc-nik-116 pxc-eqx-118 Equinix pxc-eqx-118 core-eun-302 core-eun-301 core-glo-202 core-glo-201 stub-nik-221 stub-nik-321 stub-eun-315 stub-eun-215 stub-glo-313 stub-glo-213 stub-eqx-318 stub-eqx-218 stub-tel-320 stub-tel-220 stub-sar-222 stub-sar-322 edge-sar-001 edge-tel-005 edge-nik-003 edge-eun-008 edge-glo-007 edge-eqx-009
12 AMS-IX version 4 Overview MPLS/VPLS-based peering platform Scaling of core switches by adding extra switches in parallel 4 LSPs between each pair of switches Load balancing of traffic over 4 LSPs between each pair of switches Retain switch resilience Keep customer connection on PXC No need for complete platform failover anymore Local impact only (single pair of switches on a site)
13 AMS-IX version 4 Characterization OSPF BFD for fast detection of link failures RSVP-TE signalled LSPs over predefined paths primary and secondary (backup) paths defined VPLS instance per VLAN Static defined VPLS peers (LDP signalled) Load balanced over parallel LSPs over all core routers Layer 2 ACLs instead of Port Security Manual adjustment for now
14 Physical Interconnection pxc-sar-101 stub-tel /32 stub-tel /32 core-glo core-glo core-eun /32 core-eun stub-nik MPLS/VPLS setup
15 Physical Interconnection pxc-sar-101 pxc-sar-101 stub-tel /32 stub-tel /32 stub-tel /32 stub-tel /32 core-glo core-glo core-eun /32 core-eun core-glo core-glo core-eun /32 core-eun stub-nik Pre-defined paths between PEs over each core router stub-nik MPLS/VPLS setup
16 pxc-sar-101 stub-tel /32 stub-tel /32 core-glo core-glo core-eun /32 core-eun stub-nik MPLS/VPLS setup Resilience
17 LSP over LSP over primary Path pxc-sar-101 backup Path stub-tel /32 stub-tel /32 core-glo core-glo core-eun /32 core-eun stub-nik MPLS/VPLS setup Resilience
18 Resilience in LSP over LSP over connection primary Path pxc-sar-101 backup Path pxc-sar-101 by means of PXC stub-tel /32 stub-tel /32 stub-tel /32 stub-tel /32 core-glo core-glo core-eun /32 core-eun core-glo core-glo core-eun /32 core-eun stub-nik stub-nik MPLS/VPLS setup Resilience
19 Requirement: No customer impact! AMS-IX v3 to v4 migration GlobalSwitch pxc-nik-103 pxc-nik-104 NIKHEF pxc-nik-108 pxc-tel-105 pxc-tel-106 Telecity pxc-tel-110 pxc-sar-101 pxc-sar-102 pxc-sar-111 SARA pxc-sar-114 pxc-nik-112 pxc-tel-115 pxc-eun-113 eunetworks pxc-glo-107 pxc-glo-109 pxc-glo-117 pxc-nik-116 pxc-eqx-118 Equinix pxc-eqx-118 stub-nik-211 stub-nik-214 stub-eun-315 stub-eun-215 stub-glo-319 stub-glo-219 stub-eqx-318 stub-eqx-218 stub-sar-322 stub-sar-222 stub-nik-311 stub-nik-314 stub-tel-320 stub-tel-220 core-eun-301 core-glo-201 edge-sar-001 BI15000 edge-tel-005 BI15000 edge-nik-003 BI15000 edge-eun-014 edge-glo-007 BI15000 edge-eqx-015 edge-sar-001 BI15000 edge-nik-003 BI15000 edge-tel-005 BI15000 GlobalSwitch pxc-sar-101 pxc-sar-102 SARA pxc-sar-111 pxc-tel-105 pxc-tel-106 Telecity pxc-tel-110 pxc-nik-103 pxc-nik-104 pxc-nik-108 NIKHEF pxc-nik-112 pxc-sar-114 pxc-tel-115 pxc-eun-113 eunetworks pxc-glo-107 pxc-glo-109 pxc-glo-117 pxc-nik-116 pxc-eqx-118 Equinix pxc-eqx-118 core-eun-302 core-eun-301 core-glo-202 core-glo-201 stub-nik-221 stub-nik-321 stub-eun-315 stub-eun-215 stub-glo-313 stub-glo-213 stub-eqx-318 stub-eqx-218 stub-tel-320 stub-tel-220 stub-sar-222 stub-sar-322 edge-sar-001 edge-tel-005 edge-nik-003 edge-eun-008 edge-glo-007 edge-eqx-009?
20 NIKHEF SARA eunetworks GlobalSwitch Telecity Equinix pxc-nik-116 pxc-nik-112 pxc-nik-108 pxc-nik-104 pxc-nik-103 pxc-sar-114 pxc-sar-111 pxc-sar-102 pxc-sar-101 pxc-eun-113 pxc-glo-117 pxc-glo-109 pxc-glo-107 pxc-tel-115 pxc-tel-110 pxc-tel-106 pxc-tel-105 pxc-eqx-118 stub-nik-214 stub-nik-211 stub-nik-314 stub-nik-311 stub-sar-222 stub-sar-322 stub-eun-215 stub-eun-315 stub-glo-219 stub-glo-319 stub-tel-220 stub-tel-320 stub-eqx-218 stub-eqx-318 core-eun-301 core-glo-201 edge-sar-001 edge-sar-001 BI15000 BI15000 edge-nik-003 edge-nik-003 BI15000 BI15000 edge-eun-014 edge-glo-007 BI15000 edge-tel-005 edge-tel-005 BI15000 BI15000 edge-eqx-015 Migration steps: Initial situation AMS-IX v3 to v4 migration
21 Platform Migration Preparation Build new version of PSCD (Photonic Switch Control Deamon) No VSRP traps but LSP state in MPLS cloud Develop configuration automation Describe network in XML, generate configurations from this Move non MPLS capable switches behind MPLS routers and PXC as a customer connection Upgrade all non MPLS capable switches Define migration scenario that would have no customer impact
22 2 Co-location sites only customer routers customer routers for simplicity < n*1 GE N * < n*1 GE N * Double L2 network PXC PXC VSRP for master slave selection and loop GE GE protection core core Colocation 1 Colocation 2 Migration steps: Initial situation simplified AMS-IX v3 to v4 migration
23 Not possible to connect customer routers customer routers GE switch to both MPLS/VPLS cloud and < n*1 GE N * < n*1 GE N * basic L2 network GE PXC GE PXC Brocade BI-15K (end of life) not MPLS capable core core Colocation 1 Colocation 2 Migration steps: move GE behind PXC AMS-IX v3 to v4 migration
24 Production on L2 customer routers customer routers network (red) < n*1 GE N * < n*1 GE N * Migrate blue network to MPLS/VPLS GE PXC GE PXC Traffic between two PE routers load balanced over 2 LSPs, one over each P router PE router PE router Test functionality and connections using test traffic sent by Anritsu traffic generators P router P Router core Colocation 1 Colocation 2 Migration steps: Migrate one half to MPLS/VPLS AMS-IX v3 to v4 migration
25 Move production traffic customer routers customer routers to MPLS/VPLS cloud Use PXCs for failover New PSCD < n*1 GE N * < n*1 GE N * GE PXC GE PXC Run production on MPLS/ VPLS cloud for 6 weeks PE router PE router P router P Router core Colocation 1 Colocation 2 Migration steps: Production on MPLS/VPLS, L2 backup AMS-IX v3 to v4 migration
26 Migrate second half of the customer routers customer routers platform to MPLS/VPLS < n*1 GE N * < n*1 GE N * Test functionality and connections using test GE PXC GE PXC traffic sent by Anritsu traffic generators PE Router PE Router PE router PE router P Router P Router P Router P router Colocation 1 Colocation 2 Migration steps: Two MPLS/VPLS platforms AMS-IX v3 to v4 migration
27 Move production traffic customer routers customer routers to red MPLS/VPLS cloud using the newly developed < n*1 GE N * < n*1 GE N * version of PSCD to manage the PXCs GE PXC GE PXC Still two separate PE Router PE Router PE router PE router networks, both MPLS/ VPLS based P Router P Router P Router P router Colocation 1 Colocation 2 Migration steps: production on second MPLS/VPLS platform AMS-IX v3 to v4 migration
28 All PE routers connected customer routers customer routers to all P routers Between each pair of PE routers, 4 LSPs. One over each P router Traffic between each pair of PE routers load balanced over the 4 LSP GE < n*1 GE N * < n*1 GE N * PXC GE PXC customer PE Router PE Router PE router PE router connections distributed over local PE routers Resilience in customer connection to local PE router by means of PXCs Failover of customer connection to other PE router independent of other connections P Router P Router P Router Colocation 1 Colocation 2 P router Migration steps: integration to single MPLS/VPLS cloud AMS-IX v3 to v4 migration
29 Final situation AMS-IX v3 to v4 migration GlobalSwitch pxc-sar-101 pxc-sar-102 SARA pxc-sar-111 pxc-tel-105 pxc-tel-106 Telecity pxc-tel-110 pxc-nik-103 pxc-nik-104 pxc-nik-108 NIKHEF pxc-nik-112 pxc-sar-114 pxc-tel-115 pxc-eun-113 eunetworks pxc-glo-107 pxc-glo-109 pxc-glo-117 pxc-nik-116 pxc-eqx-118 Equinix pxc-eqx-118 core-eun-302 core-eun-301 core-glo-202 core-glo-201 stub-nik-221 stub-nik-321 stub-eun-315 stub-eun-215 stub-glo-313 stub-glo-213 stub-eqx-318 stub-eqx-218 stub-tel-320 stub-tel-220 stub-sar-222 stub-sar-322 edge-sar-001 edge-tel-005 edge-nik-003 edge-eun-008 edge-glo-007 edge-eqx-009
30 Results Increased stability ( customers Backbone failures handled by MPLS (not seen by Access switch failures handled for a single pair of switches Phased relocation of traffic streams Looped traffic filtered by L2 ACL => No effect on linecard CPU
31 Results Easier debugging of customer ports Simply swap to different, active switch using Glimmerglass PXC Config generation Absolute necessity due to size of MPLS/VPLS configuration Fairly simple because of single hardware platform
32 Results ( options Scalability (future Bigger core devices Do not need to be MPLS-capable Load-sharing over > 4 cores Pending feature request Use of different cores for sets of PEs Multiple layers of P-routers
33 Questions?
34 Backup Slides SubTitle
35 X *, X >= 1 PXC Switches Access AMS-IX Photonic Cross Connects (PXC) Resilience in customer connection
36 X *, X >= 1 PXC Switches Access AMS-IX Photonic Cross Connects (PXC) Resilience in customer connection
37 X *, X >= 1 PXC Switches Access AMS-IX Photonic Cross Connects (PXC) Resilience in customer connection
38 Customer router Customer router PXC pxc-sar-101 Access rood Access Blue Problem or Access rood Access Blue BLOCKED for traffic maintenance BLOCKED for traffic VSRP in red network VSRP Core Red MASTER VSRP HELLO Core Blue BACKUP VSRP Priority Core Red BACKUP VSRP HELLO Core Blue MASTER BLOCKED for traffic Red Master lower BLOCKED for traffic Edge than the Blue priority Edge Customer 1GE router Customer 1GE router AMS-IX Version 3 Platform Topology Failover
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