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routing-instances { routing-instance-name { interface interface-name; instance-type (forwarding | l2vpn | layer2-control | no-forwarding | virtual-router | virtual-switch | vpls | vrf); } }
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1. VRFã
2.転éã
3.ä»®æ³ã«ãŒã¿ãŒã
4.é転éã
5. VPLSã
6.ã¬ã€ã€ãŒ2 VPN
7. Layer2ã³ã³ãããŒã«ïŒMXã·ãªãŒãºã«ãŒã¿ãŒã®ã¿ïŒã
8.ä»®æ³ã¹ã€ããïŒMXã·ãªãŒãºã«ãŒã¿ãŒã®ã¿ïŒã
9.ã¬ã€ã€ãŒ2ããã¯ããŒã«VPNïŒMXã·ãªãŒãºã«ãŒã¿ãŒã®ã¿ïŒïŒããã«ã€ããŠã¯å¥ã®æçš¿ãæžããŸãïŒã
誰ããèšäºã§äœããã®äºåçãŸãã¯äžæ£ç¢ºãªãã®ãèŠã€ããå ŽåïŒç§ã人éã§ããã誀解ããå¯èœæ§ããããŸãïŒã誰ããè¿œå ããå Žåã¯ãå¿ èŠãªæ å ±ãžã®ãªã³ã¯ãå«ãå人çãªã¡ãã»ãŒãžãæžããŠãã ããã
VRFïŒä»®æ³ã«ãŒãã£ã³ã°ããã³è»¢éïŒã
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VRFã¯ãã¡ã€ã³ã«ãŒã¿ãŒïŒãŸãã¯ã¹ã€ããïŒå ã®ç¬ç«ããã«ãŒã¿ãŒã§ã¯ãããŸããã VRFã¯ãã«ãŒãã£ã³ã°ããŒãã«ãšã¯ã©ã€ã¢ã³ãã€ã³ã¿ãŒãã§ã€ã¹ããã¡ã€ã³ã«ãŒãã£ã³ã°ããŒãã«ãšã«ãŒã¿ãŒã€ã³ã¿ãŒãã§ã€ã¹ãããã³ã«ãŒãã£ã³ã°ããŒãã«ãšä»ã®ã¯ã©ã€ã¢ã³ãã€ã³ã¿ãŒãã§ã€ã¹ããåé¢ããŸãã VRFèšå®ã¯æ¬¡ã®ãšããã§ãã
root@PE2# show routing-instances 6pe-2 { instance-type vrf; interface ge-0/0/3.101; route-distinguisher 2001:31133; vrf-target target:200:31133; vrf-table-label; routing-options { router-id 101.101.101.101; } protocols { ospf3 { export isis-ce2-export; area 0.0.0.0 { interface ge-0/0/3.101; } } } }
ãã®ã«ãŒãã£ã³ã°ã€ã³ã¹ã¿ã³ã¹ã®æ©èœã¯ããã¹ãŠã®ã«ãŒãã£ã³ã°ãããã³ã«ãéçã«ãŒããã©ãã«é åžãããã³ã«ldpïŒãã ããrsvpã¯ãµããŒããããŸããïŒãããã³ã«ãŒãã®ãšã¯ã¹ããŒããšã€ã³ããŒãïŒã¡ã€ã³ã«ãŒãã£ã³ã°ã€ã³ã¹ã¿ã³ã¹ã®ã«ãŒãã£ã³ã°ãããã³ã«ããã³ã«ãŒã¿ãŒã§æ§æãããä»ã®VRFããïŒããµããŒãããŸãã
æ§æã§ã¯ãäžæã®ã«ãŒãèå¥åå€ãã«ãŒãã¿ãŒã²ããïŒã€ã³ããŒãããã³ãšã¯ã¹ããŒãïŒå€ãããã³ãã®ã«ãŒãã£ã³ã°ã€ã³ã¹ã¿ã³ã¹ã«é¢é£ããã¯ã©ã€ã¢ã³ãåŽã®ã€ã³ã¿ãŒãã§ãŒã¹ãæå®ããå¿ èŠããããŸãã RTãšRDã®äœ¿çšã¯ãl3vpnïŒãããããããã³ãã®ããžãã¯ã䜿çšããä»ã®ãã¯ãããžãŒãããšãã°6VPEïŒã®å®è£ ã«ãããéèŠãªæŠå¿µã®1ã€ã§ãããããã®2ã€ã®å€ã«ãããç°ãªãã¯ã©ã€ã¢ã³ãããã³åŸç¶ã®ã¯ã©ã€ã¢ã³ãããåä¿¡ããéè€ã¯ã©ã€ã¢ã³ãã¢ãã¬ã¹ïŒRDïŒããã³ãã£ã«ã¿ãŒãã¬ãã£ãã¯ã¹ã䜿çšã§ããŸãããããåé¢ã«ãŒãã£ã³ã°ããŒãã«ïŒRTïŒã«ã€ã³ã¹ããŒã«ããŸãã ãã®ã«ãŒãã£ã³ã°ã€ã³ã¹ã¿ã³ã¹ã¯ãinstance_name.inet.0ãŸãã¯instance_name.inet6.0ãšããååã®ç¬èªã®ã«ãŒãã£ã³ã°ããŒãã«ãäœæããŸãã
vrf1.inet.0: 12 destinations, 22 routes (12 active, 0 holddown, 0 hidden) + = Active Route, - = Last Active, * = Both 10.0.0.0/30 *[OSPF/10] 01:59:31, metric 2 > to 10.0.1.1 via ge-0/0/0.0 10.1.1.1/32 *[OSPF/10] 01:59:31, metric 2 > to 10.0.1.1 via ge-0/0/0.0 10.2.2.2/32 *[OSPF/10] 01:59:31, metric 2 > to 10.0.1.1 via ge-0/0/0.0
ã¯ã©ã€ã¢ã³ãã®ã«ãŒãã£ã³ã°ããŒãã«ã«ã¯ããã®ã¯ã©ã€ã¢ã³ãã®ä»ã®ãµã€ããžã®ã«ãŒããšãã®å éšã«ãŒãã®ã¿ããããŸãã ã€ãŸããã¯ã©ã€ã¢ã³ãã«ãšã£ãŠããããã€ããŒã®ãããã¯ãŒã¯ã¯ééçã§ããããã¹ãŠã®ãµã€ããæ¥ç¶ãããŠããã«ãŒã¿ãŒã®ããã«èŠããŸãã
ã¯ã©ã€ã¢ã³ãã®ã«ãŒãã£ã³ã°ããŒãã«ã«å ããŠãå¥ã®ã«ãŒãã£ã³ã°ããŒãã«bgp.l3vpn.0ãã«ãŒã¿ãŒäžã«äœæãããbgpãããã³ã«ïŒã¢ãã¬ã¹ãã¡ããªinet-vpnãŠããã£ã¹ãïŒã䜿çšããŠã«ãŒã¿ãŒãåä¿¡ãããã¹ãŠã®ã«ãŒãããæ§æãããRTã€ã³ããŒãå€ã«åŸã£ãŠã€ã³ã¹ããŒã«ãããŸãã
bgp.l3vpn.0: 12 destinations, 9 routes (9 active, 0 holddown, 0 hidden) Prefix Nexthop MED Lclpref AS path 100:100:10.0.0.0/16 * 10.2.2.2 0 100 ? 100:100:10.0.1.1/32 * 10.2.2.2 0 100 ? 200:100:10.0.0.0/16 * 10.3.3.3 0 100 ?
泚ïŒãã®VRFã§ISISãããã³ã«ãå®è¡ããå¿ èŠãããå ŽåãNETã¢ãã¬ã¹ã§Loè«çã€ã³ã¿ãŒãã§ã€ã¹ã®è¿œå ãŠããããèšå®ãããã®è«çã€ã³ã¿ãŒãã§ã€ã¹ãVRFã«æ¥ç¶ããå¿ èŠããããŸãã
ce2-l3vpn { instance-type vrf; interface ge-0/0/2.0; interface lo0.1; # VRF unit 1 Lo0 route-distinguisher 10.0.1.0:31133; vrf-target target:10:31133; protocols { isis { export isis-ce2-export; interface ge-0/0/2.0; interface lo0.1; } } }
泚ïŒæ§æã«ã¯ãvrf-table-labelã³ãã³ãããããŸãã ããã©ã«ãã§ã¯ãJunOSã¯ã¯ã©ã€ã¢ã³ãã«ãŒãã«ãã¯ã¹ããããããšã®ã©ãã«å²ãåœãŠã䜿çšããŸãã äžèšã®ã³ãã³ãã¯ãã©ãã«é åžã¢ãŒããper-vrfã«èšå®ããŸããã€ãŸããç¹å®ã®vrfã®ãã¹ãŠã®ã«ãŒãã¯åãã©ãã«ãæã¡ãŸãã ïŒèå³ããã人ãããã°ãããã«ã€ããŠã®èšäºãæžããŸããïŒ
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ãåç¥ã®ããã«ãJunOSã¯ãç¹ã«ãã®æ°äººãã·ã¹ã³ã®äžçããæ¥ãå ŽåãäžèŠç解ã§ããªãæ§æã§å€ãã®æ°äººãæããããŸãã ããšãã°ãCiscoã§ããªã·ãŒããŒã¹ã«ãŒãã£ã³ã°ïŒPBRïŒãå®è¡ããå¿ èŠãããå Žåãã¢ã¯ã»ã¹ãªã¹ããšåçŽãªã«ãŒãããããèšè¿°ããŸãã JunOSã§ã¯ãã¹ãŠãããè€éã«ãªããŸããããžã¥ãããŒã®ã¢ãããŒããç解ããã°ããããTsiskovskyã®ã¢ãããŒããããã¯ããã«ãšã¬ã¬ã³ãã§ããããšãç解ã§ããŸãã ãªããããæžããŠããã®ã§ããïŒ å®éãã«ãŒãã£ã³ã°ã€ã³ã¹ã¿ã³ã¹ã®è»¢éã¯ãPBRã®ç®çã®ããã«ç¹å¥ã«èæ¡ããããã®ã§ãïŒãžã¥ãããŒã®äžçã§ã¯ããã®ã¿ã€ãã®ã«ãŒãã£ã³ã°ã¯ãã£ã«ã¿ãŒããŒã¹ã®ã«ãŒãã£ã³ã°ãšåŒã°ããŸãïŒã ãã®ã«ãŒãã£ã³ã°ã€ã³ã¹ã¿ã³ã¹ã®æ§æã¯æ¬¡ã®ãšããã§ãã
[edit routing-instances] root# show forward { instance-type forwarding; routing-options { static { route 10.0.0.0/24 next-hop 10.0.1.1; } } }
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ãã ããã«ãŒãã£ã³ã°ã€ã³ã¹ã¿ã³ã¹ãå¿ èŠãªãã¯ã¹ããããã«ãã±ãããéä¿¡ã§ããããã«ããã«ã¯ããã®ãã¯ã¹ãããããžã®ã«ãŒããå¿ èŠã§ãã ãããè¡ãã«ã¯ãã«ãŒãã£ã³ã°ããŒãã«inet.0ããæ§ææžã¿ã®ã«ãŒãã£ã³ã°ã€ã³ã¹ã¿ã³ã¹ïŒinstance_name.inet.0ãšåŒã°ããŸãïŒã®ã«ãŒãã£ã³ã°ããŒãã«ã«ã«ãŒãã転éããå¿ èŠããããŸãããã¹ãŠã®ã«ãŒããå¿ èŠãªããã§ã¯ãããŸããïŒçŽæ¥æ¥ç¶ãããŠããããšãèŠããŠããŸãïŒã ããã¯ããªãã°ã«ãŒãã䜿çšããŠè¡ãããŸã ã詳现ã«ã€ããŠã¯ã ãã¡ããåç §ããŠãã ãã ã
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* JunOSã§ã¯ããã®ã¿ã€ãã®ã«ãŒãã£ã³ã°ã€ã³ã¹ã¿ã³ã¹ã§ospfãŸãã¯isisãªã©ãæ§æã§ããŸãïŒBGPã¯ãµããŒããããŠããŸããïŒããã«ãŒãã£ã³ã°ã€ã³ã¹ã¿ã³ã¹ã«ã€ã³ã¿ãŒãã§ã€ã¹ãå²ãåœãŠãããŠããªããããã«ãŒãã£ã³ã°ãããã³ã«ã®äœ¿çšã¯ç¡æå³ã«ãªããã¡ã€ã³ããŒãã«ããrib-çµç±ã§ã«ãŒããè¿œå ã§ããŸãåå¥ã®ã«ãŒãã£ã³ã°ãããã³ã«ã䜿çšããªãã°ã«ãŒãã
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ã«ãŒãã£ã³ã°ã€ã³ã¹ã¿ã³ã¹ã®ä»®æ³ã«ãŒã¿ãŒæ©èœã¯ãã·ã¹ã³ã®vrf-liteã«äŒŒãŠããŸãã ãã®ã«ãŒãã£ã³ã°ã€ã³ã¹ã¿ã³ã¹ã«ãããripããbgpãžã®ã«ãŒãã£ã³ã°ãããã³ã«ã®å®è¡ãGREããã³ipsecãã³ãã«ã®äœæãnatããã³dhcpæ©èœã®å®è£ ãLDPãããã³ã«ã®ãµããŒããå¯èœã«ãªããŸãïŒãã ããRSVPã¯ãµããŒããããŸããïŒã ãã®ã«ãŒãã£ã³ã°ã€ã³ã¹ã¿ã³ã¹ã®äž»ãªç®çã¯ãã¯ã©ã€ã¢ã³ãã€ã³ã¿ãŒãã§ã€ã¹ãšãã®ã«ãŒãã£ã³ã°ããŒãã«ãåé¢ããããšã§ãã ä»®æ³ã«ãŒã¿ãŒã®æãè¿ããã®ã¯ãã«ãŒãã£ã³ã°ã€ã³ã¹ã¿ã³ã¹ã®é転éïŒä»¥äžã§èª¬æããŸãïŒãšåŒã°ããŸããããããã®æ©èœã¯ãã䌌ãŠããŸãã ãã ããæ€èšããŠããã«ãŒãã£ã³ã°ã€ã³ã¹ã¿ã³ã¹ã¿ã€ãã¯ãinstance_name.inet.0ïŒinstance_name.inet6.0ïŒãšããååã®å¥ã®ã«ãŒãã£ã³ã°ããŒãã«ãžã®ã«ãŒããèšå®ããŸãã
r6.inet.0: 4 destinations, 4 routes (4 active, 0 holddown, 0 hidden) + = Active Route, - = Last Active, * = Both 60.0.0.0/30 *[Direct/0] 00:11:18 > via ge-0/0/2.0 60.0.0.1/32 *[Local/0] 00:11:18 Local via ge-0/0/2.0 60.1.1.1/32 *[OSPF/10] 00:11:04, metric 2 > to 60.0.0.2 via ge-0/0/2.0 224.0.0.5/32 *[OSPF/10] 00:11:19, metric 1 MultiRecv
ãã®ã«ãŒãã£ã³ã°ã€ã³ã¹ã¿ã³ã¹ã«ããã«ãŒãã®ã¿ãã¯ã©ã€ã¢ã³ãã«äžããããŸãã ãªãã°ã«ãŒãã䜿çšãããšãã¡ã€ã³ã«ãŒãã£ã³ã°ããŒãã«ããã¯ã©ã€ã¢ã³ãã®ã«ãŒãã£ã³ã°ããŒãã«ã«ã«ãŒããåé åžããããã«ãŒã¿ãŒã«ååšããä»®æ³ã«ãŒã¿ãŒéã§ã«ãŒããåé åžãããã§ããŸãã
ãã®ã¿ã€ãã®ã«ãŒãã£ã³ã°ã€ã³ã¹ã¿ã³ã¹ã¯éåžžã«é »ç¹ã«äœ¿çšãããŸãã VRFãšæ¯èŒãããšããã®ã«ãŒãã£ã³ã°ã€ã³ã¹ã¿ã³ã¹ã«ããRTãšRDãèšå®ããå¿ èŠããªããªããŸãã ãã®ã«ãŒãã£ã³ã°ã€ã³ã¹ã¿ã³ã¹ã®èšå®äŸã次ã«ç€ºããŸãã
r6 { instance-type virtual-router; interface ge-0/0/2.0; } protocols { ospf { export export-200; area 0.0.0.0 { interface all; } } }
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[edit routing-instances] root# show noforward { instance-type no-forwarding; interface ge-0/0/3.0; routing-options { auto-export; } protocols { ospf { export export-100; area 0.0.0.0 { interface ge-0/0/3.0; } } } }
泚ïŒèªåãšã¯ã¹ããŒãã¯ãã¡ã€ã³ã«ãŒãã£ã³ã°ã€ã³ã¹ã¿ã³ã¹ãšã«ãŒãã£ã³ã°ã€ã³ã¹ã¿ã³ã¹ã®é転éã§æ§æããå¿ èŠããããŸããããããªããšãæåŸ ã©ããã®çµæãåŸãããŸããã
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root> show route instance summary Instance Type Primary RIB Active/holddown/hidden master forwarding inet.0 19/0/0 __juniper_private1__ forwarding __juniper_private1__.inet.0 7/0/0 __juniper_private2__ forwarding __juniper_private2__.inet.0 0/0/1 __master.anon__ forwarding forward forwarding forward.inet.0 7/0/0 no-frw non-forwarding no-frw.inet.0 16/0/0 virtual-router virtual-router virtual-router.inet.0 14/0/0
3ã€ã®æ§ææžã¿ã®ã«ãŒãã£ã³ã°ã€ã³ã¹ã¿ã³ã¹ãš1ã€ã®æ¢å®ã®ã«ãŒãã£ã³ã°ã€ã³ã¹ã¿ã³ã¹ããããšããçµè«ããåŸãããŸãïŒãã©ã€ããŒãã«ãŒãã£ã³ã°ã€ã³ã¹ã¿ã³ã¹ã¯èæ ®ããŸããïŒã
ã¿ã€ãvirtual-routerã®1.virtual-routerïŒã«ãŒãã£ã³ã°ããŒãã«virtual-router.inet.0ãšäžèŽïŒ
ã¿ã€ã転éã䜿çšãã2.forwardïŒã«ãŒãã£ã³ã°ããŒãã«forward.inet.0ã«å¯Ÿå¿ïŒ
3.defaultïŒinet.0ã«ãŒãã£ã³ã°ããŒãã«ã«äžèŽïŒ
4.é転éã¿ã€ãã®no-frwïŒã«ãŒãã£ã³ã°ããŒãã«no-frw.inet.0ãšäžèŽïŒ
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root> show route forwarding-table | match table Routing table: default.inet Routing table: __master.anon__.inet Routing table: forward.inet Routing table: virtual-router.inet Routing table: default.iso Routing table: __master.anon__.iso Routing table: forward.iso Routing table: virtual-router.iso Routing table: default.inet6 Routing table: __master.anon__.inet6 Routing table: forward.inet6 Routing table: virtual-router.inet6 Routing table: default.mpls Routing table: :mpls-oam.mpls Routing table: default.ethernet-switching Routing table: default.vmembers Routing table: default.device-route Routing table: default.MSTI Routing table: default.dhcp-snooping
転éããŒãã«ã®ã¿ãäœæãããŸãïŒ
1.virtual-router.inet.0
2.forward.inet.0
3. default.inet.0
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ãã®åŸãçåãçããŸã-ãªããã®ã«ãŒãã£ã³ã°ã€ã³ã¹ã¿ã³ã¹ãå¿ èŠãªã®ã§ããïŒ ã·ã¹ã³ãšã¯ç°ãªãããžã¥ãããŒã®ããŒããŠã§ã¢ã§ã¯ãåãã€ã³ã¹ã¿ã³ã¹ã§åãã«ãŒãã£ã³ã°ãããã³ã«ã®2ã€ã®ã³ããŒãå®è¡ã§ããŸããã ã€ãŸããã·ã¹ã³ã§ospf 1ããã»ã¹ãšospf 2ããã»ã¹ãåæã«éå§ã§ããå ŽåãJunOSã§ã¯[edit protocols]éå±€ã¬ãã«ã§ãåãããã»ã¹ã®2ã€ã®ã³ããŒãããšãã°OSPFãéå§ããæ¹æ³ã¯ãããŸããïŒãšãªã¢ãšæ··åããªãã§ãã ãããããã€ããããããããªãã®ã§ïŒã ãã®ã«ãŒãã£ã³ã°ã€ã³ã¹ã¿ã³ã¹ã¯ãåãã«ãŒãã£ã³ã°ãããã³ã«ã®è€æ°ã®ã³ããŒãå®è¡ããããã«èšèšãããŠããŸãã
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ãããã£ãŠãCE2ãCE3ãšã®ã¿éä¿¡ããããã«å¿ããŠCE1ãCE4ãšã®ã¿éä¿¡ã§ããããã«ãããšããŸãã ããã§ã¯ãã«ãŒãã£ã³ã°ã€ã³ã¹ã¿ã³ã¹ã®é転éã䜿çšããŸãã
PE0ããã³PE2ã§no-forwardingã¿ã€ãã®2ã€ã®ã«ãŒãã£ã³ã°ã€ã³ã¹ã¿ã³ã¹ïŒ1ããã³2ïŒãäœæãããããã«å¿ èŠãªã€ã³ã¿ãŒãã§ã€ã¹ãæå®ããŠãospfãå®è¡ããŸãã
ospfã«ãŒãã£ã³ã°ã€ã³ã¹ã¿ã³ã¹1ããã»ã¹ãCE1ããã«ãŒããåä¿¡ãããããã®ã«ãŒãã«ã¿ã°100ãè¿œå ããŠããã©ã«ãã®ãªãinet.0ã«ãšã¯ã¹ããŒãããospfã«ãŒãã£ã³ã°ã€ã³ã¹ã¿ã³ã¹2ããã»ã¹ãCE2ããåä¿¡ããã«ãŒãã«200ã¿ã°ãè¿œå ããŠããã©ã«ãã«ãšã¯ã¹ããŒãããããªã·ãŒãäœæããŸããªãinet.0
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ããã«ããããã®ã«ãŒãã¯ã¿ã°ãšãšãã«PE2ã«è»¢éãããŸãã ããªã·ãŒã䜿çšããŠãã«ãŒãã£ã³ã°ã€ã³ã¹ã¿ã³ã¹1ã®PE2ã§ã200ã®ã¿ã°ãæã€ã«ãŒãã®ã¿ãCE3ã«ãšã¯ã¹ããŒãããããã«æå®ããŸãããããã£ãŠã100ã®ã¿ã°ãæã€ã«ãŒãã®ã¿ãCE4ã«ãšã¯ã¹ããŒãããå¿ èŠããããŸãããã®çµæã3çªç®ã®ã¬ãã«ã§ã»ãŒVLANãååŸããŸãã
å¿ èŠã«å¿ããŠãCE1ãšCE4ã®éããããã£ãŠCE2ãšCE3ã®éã§ãã©ãã£ãã¯äº€æãå¯èœã§ãã CE1ãšCE3ã®éã§ãã©ãã£ãã¯äº€æãäžå¯èœãªã®ã¯ãªãã§ããïŒ åçŽãªçç±ã«ãããCE1ã«ã¯CE2ãŸãã¯CE3ãžã®ã«ãŒãããããŸããã åæ§ã®ç¶æ³ã¯ããã®ããããžã®ä»ã®ã«ãŒã¿ãŒã§ãèŠãããŸãã
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VPLSã
VPLSãã¯ãããžãŒã®åäœåçã¯ããã®èšäºã®æ¬æã«ã¯å«ãŸããŠããŸãããã説æã«ãã£ãŠéšåçã«åœ±é¿ãåããŸãïŒããã§ãªãå Žåã¯äœã説æã§ããŸããïŒã
Virtual Private LAN Serviceãå®è£ ããå¿ èŠããããŸãããã®ã«ãŒãã£ã³ã°ã€ã³ã¹ã¿ã³ã¹ãäœæããŸãã å®éãæ©èœçã«VRFãç¹°ãè¿ããŸãïŒç¹ã«BGPã·ã°ããªã³ã°ã䜿çšããå ŽåïŒããL2ãµãŒãã¹ã®å®è£ ãç®çãšããŠããŸãã ãã®ã¿ã€ãã®ã«ãŒãã£ã³ã°ã€ã³ã¹ã¿ã³ã¹ã䜿çšãããšãã¯ã©ã€ã¢ã³ããµã€ãéã®ä»®æ³l2æ¥ç¶ããå®å šã«æ¥ç¶ãããããããžãèªåçã«äœæã§ããŸãã ãã®ã«ãŒãã£ã³ã°ã€ã³ã¹ã¿ã³ã¹ã¯ãã«ãŒãã£ã³ã°ããã³ã©ãã«é åžãããã³ã«ãå®è¡ããå¿ èŠããªãããããããã®æ§æããµããŒãããŠããŸããã ãã®ã«ãŒãã£ã³ã°ã€ã³ã¹ã¿ã³ã¹ã¯IPã¢ãã¬ã¹ã§ã¯ãªãl2ã§åäœããããã転éããŒãã«ã«ã¯MACã¢ãã¬ã¹ãæ ŒçŽãããŸãã
Routing table: vpls_bgp_signalig.vpls VPLS: Destination Type RtRef Next hop Type Index NhRef Netif default perm 0 rjct 587 1 ge-0/0/3.0 user 0 comp 580 2 lsi.1048577 user 0 comp 581 2 ca:04:76:68:00:1c/48 dynm 0 ucst 577 3 ge-0/0/3.0 ca:05:79:f4:00:1c/48 dynm 0 indr 262142 5 10.0.0.2 Push 262146, Push 17(top) 572 2 ge-0/0/0.0 ca:08:5f:e4:00:1c/48 dynm 0 indr 262142 5 10.0.0.2 Push 262146, Push 17(top) 572 2 ge-0/0/0.0
以äžã¯ãããããã®ã¯ã©ã€ã¢ã³ãïŒBGPã·ã°ããªã³ã°ïŒã®ã«ãŒãã£ã³ã°ããŒãã«ã§ãã
customer1.site1.l2vpn.0: 3 destinations, 3 routes (3 active, 0 holddown, 0 hidden) + = Active Route, - = Last Active, * = Both 10.0.1.1:100:1:1/96 *[L2VPN/170/-101] 04:00:26, metric2 1 Indirect 10.0.1.2:100:2:1/96 *[BGP/170] 00:04:23, localpref 100, from 1.1.1.254 AS path: I > to 20.0.0.2 via ge-0/0/1.0 10.0.1.3:100:3:1/96 *[BGP/170] 00:04:54, localpref 100, from 1.1.1.254 AS path: I > to 20.0.2.2 via ge-0/0/0.0, Push 299808 to 20.0.1.2 via ge-0/0/2.0, Push 299808
10.0.1.1:100:1:1/96-ãã®ãã¬ãã£ãã¯ã¹ã¯ã¯ã©ã€ã¢ã³ãã®ãµã€ãã瀺ãã以äžã§æ§æãããŸãã
1.10.0.1.1ïŒ100-RD
2. 1-ãµã€ãID
3. 1-ã©ãã«ãããã¯ãªãã»ããïŒã©ãã«ãããã¯ã·ããã誰ããèå³ãæã£ãŠããå ŽåãVPLSãç·šæãããšãã®ã©ãã«æäœã«é¢ããèšäºãå¥ã«æžãããšãã§ããŸãïŒ
äžèšã®ã«ãŒãã£ã³ã°ããŒãã«ã«å ããŠãJunOSã«ã¯å¥ã®ã«ãŒãã£ã³ã°ããŒãã«bgp.l2vpn.0ãããããã®PEã«ãŒã¿ãŒã®ãã¹ãŠã®l2vpnã«ãŒãã衚瀺ãããŸãïŒbgpãã¢ã©ãŒã ãšããŠäœ¿çšããå ŽåïŒã
bgp.l2vpn.0: 4 destinations, 4 routes (4 active, 0 holddown, 0 hidden) + = Active Route, - = Last Active, * = Both 30.0.1.1:100:102:97/96 *[BGP/170] 00:04:55, localpref 100, from 1.1.1.254 AS path: I > to 20.0.2.2 via ge-0/0/0.0, Push 299808 to 20.0.1.2 via ge-0/0/2.0, Push 299808 10.0.1.2:100:2:1/96 *[BGP/170] 00:04:23, localpref 100, from 1.1.1.254 AS path: I > to 20.0.0.2 via ge-0/0/1.0
ãã®ã«ãŒãã£ã³ã°ã€ã³ã¹ã¿ã³ã¹ã®èšå®ã¯ãVPLSã®ç·šæã«äœ¿çšãããã·ã°ããªã³ã°ïŒBGPïŒCompell draftïŒãŸãã¯LDPïŒMartiniïŒïŒã«äŸåããŸãã èšå®ã¯éžæã«å¿ããŠå€ãããŸãã
Komplãã©ããïŒBGPã·ã°ããªã³ã°ïŒã«åŸã£ãŠVPLSãå®è£ ãããšãæ§æã¯æ¬¡ã®ããã«ãªããŸãã
routing-instances { customer1.site1 { instance-type vpls; interface ge-0/0/3.0; route-distinguisher 10.0.1.1:100; vrf-target target:10.0.1.0:100; protocols { vpls { no-tunnel-services; site site1 { site-range 10; site-identifier 1; interface ge-0/0/3.0; } } } }
Compellãã©ããã«ã¯èªåæ€åºPEã«ãŒã¿ãŒãå«ãŸããŠãããããæ§æã§ã¯ãã€ã³ã¿ãŒãã§ã€ã¹ã«å ããŠRTãšRDãæå®ããå¿ èŠããããŸãã åã«ç€ºããããã«ãRDã¯ãã¯ã©ã€ã¢ã³ããµã€ããæ¥ç¶ãããŠããPEã«ãŒã¿ãŒãæ€çŽ¢ããã³èå¥ããããã«äœ¿çšãããŸãã éå±€ã¬ãã«[ã«ãŒãã£ã³ã°ã€ã³ã¹ã¿ã³ã¹ãããã³ã«vplã®ç·šé]ã§ã¯ããµã€ãã®ååããã®ãµã€ãèå¥åïŒæ§æã§æå®ãããŠããå Žåã¯JunOSã§èªåçã«æå®ã§ããŸãïŒãããã³ã¯ã©ã€ã¢ã³ãã®ãµã€ãã®æ倧æ°ïŒãµã€ãç¯å²ïŒãæå®ããå¿ èŠãããããµã€ãèå¥åã¯ãµã€ãç¯å²æªæºã
LDPã·ã°ããªã³ã°ïŒMartiniïŒã䜿çšããå Žåãæ§æã¯å°ãç°¡åã«ãªããŸãã
ce3-vpls-ldp { instance-type vpls; interface ge-0/0/3.0; protocols { vpls { no-tunnel-services; vpls-id 101; neighbor 1.1.1.1; neighbor 2.2.2.2; } } }
ãã®VPLSãã¯ãããžãŒã¯ãè¿œå ã®ãæŸèæããªãã§èªåæ€åºããµããŒãããŸãã*ããããã£ãŠãåºæ¬æ§æã§ã¯ãã¯ã©ã€ã¢ã³ããæ¥ç¶ãããŠããã€ã³ã¿ãŒãã§ã€ã¹ã®ã¿ãæå®ãããRTãRDããããŸããã éå±€ã¬ãã«[ã«ãŒãã£ã³ã°ã€ã³ã¹ã¿ã³ã¹ãããã³ã«vplã®ç·šé]ã§ã¯ãã¯ã©ã€ã¢ã³ããµã€ããæ¥ç¶ãããŠãããã¹ãŠã®PEã«ãŒã¿ãŒã®ã«ãŒãããã¯ãšããã®ã¯ã©ã€ã¢ã³ãã®ãã¹ãŠã®VPLSã«ãŒãã£ã³ã°ã€ã³ã¹ã¿ã³ã¹ã§åãã§ãªããã°ãªããªãVPLS-IDãæå®ããå¿ èŠããããŸãã
*ãã®å Žåã«èªåæ€åºã䜿çšããã«ã¯ãã¢ãã¬ã¹ãã¡ããªbgp l2vpn auto-discovery-onlyã䜿çšããŠBGPã䜿çšããå¿ èŠããããŸãã åæã«ãPEã«ãŒã¿ã§ãã€ããŒãæ瀺çã«æå®ããå¿ èŠã¯ãããŸããããRTãRDãããã³l2vpn-idãèšå®ããå¿ èŠããããŸãã
vpls100 { instance-type vpls; interface ge-1/1/0.100; l2vpn-id l2vpn-id:100:200; vrf-target target:100:208; protocols { vpls { no-tunnel-services; } } }
ãã®ã«ãŒãã£ã³ã°ã€ã³ã¹ã¿ã³ã¹ã確ç«ããæ¥ç¶ã®ã¹ããŒã¿ã¹ã¯ãshow vpls connectionsã³ãã³ãã§ç¢ºèªã§ããŸãã
[edit] root# run show vpls connections Layer-2 VPN connections: Legend for connection status (St) EI -- encapsulation invalid NC -- interface encapsulation not CCC/TCC/VPLS EM -- encapsulation mismatch WE -- interface and instance encaps not same VC-Dn -- Virtual circuit down NP -- interface hardware not present CM -- control-word mismatch -> -- only outbound connection is up CN -- circuit not provisioned <- -- only inbound connection is up OR -- out of range Up -- operational OL -- no outgoing label Dn -- down LD -- local site signaled down CF -- call admission control failure RD -- remote site signaled down SC -- local and remote site ID collision LN -- local site not designated LM -- local site ID not minimum designated RN -- remote site not designated RM -- remote site ID not minimum designated XX -- unknown connection status IL -- no incoming label MM -- MTU mismatch MI -- Mesh-Group ID not available BK -- Backup connection ST -- Standby connection PF -- Profile parse failure PB -- Profile busy RS -- remote site standby SN -- Static Neighbor VM -- VLAN ID mismatch Legend for interface status Up -- operational Dn -- down Instance: customer1.site1 Local site: site1 (1) connection-site Type St Time last up # Up trans 2 rmt Up Nov 2 00:25:33 2015 1 Remote PE: 1.1.1.2, Negotiated control-word: No Incoming label: 262154, Outgoing label: 262153 Local interface: lsi.1049099, Status: Up, Encapsulation: VPLS Description: Intf - vpls customer1.site1 local site 1 remote site 2 3 rmt Up Nov 2 00:25:01 2015 1 Remote PE: 1.1.1.3, Negotiated control-word: No Incoming label: 262155, Outgoing label: 262153 Local interface: lsi.1049098, Status: Up, Encapsulation: VPLS Description: Intf - vpls customer1.site1 local site 1 remote site 3
ã¯ã©ã€ã¢ã³ãã®èŠ³ç¹ããã¯ããã®ãã¯ãããžãŒã¯ã¯ã©ã€ã¢ã³ãã®ãµã€ããæ¥ç¶ãããŠããã¹ã€ããã®ããã«èŠããŸãã
ã¬ã€ã€ãŒ2 VPN
Junosã«ã¯ãïŒå°ãªããšãç§ãç¥ã£ãŠããéãïŒl2vpnãäœæãã3ã€ã®æ¹æ³ããããŸãïŒVPLSãšã¯ç°ãªããl2vpnã«ã¯p2pããããžããããŸãïŒã ãã®ã«ãŒãã£ã³ã°ã€ã³ã¹ã¿ã³ã¹ã¯ãèšå®ãè¿ããVPLS BGPã·ã°ããªã³ã°ã«ã·ã°ããªã³ã°ãããŠããŸãã ãã®æ§æã«ã¯ãrdããã³rtãæå®ããŠPEã«ãŒã¿ãŒãæ€çŽ¢ããp2pæ¥ç¶ã確ç«ããããšãå«ãŸããŸãã
root# show instance-type l2vpn; interface ge-0/0/3.0; route-distinguisher 100:100; vrf-target target:1:1; protocols { l2vpn { encapsulation-type ethernet-vlan; no-control-word; site site2 { site-identifier 2; interface ge-0/0/3.0 { remote-site-id 1; } } } }
圌女ã®å ã®ã«ãŒãã£ã³ã°ã€ã³ã¹ã¿ã³ã¹vplãšåæ§ã«ããã®ã«ãŒãã£ã³ã°ã€ã³ã¹ã¿ã³ã¹ã¯ããã®ç®çã®ããã«ãã«ãŒãã£ã³ã°ãããã³ã«ã®æ§æãæå³ãããã®ã§ã¯ãããŸããã
ãã®ã«ãŒãã£ã³ã°ã€ã³ã¹ã¿ã³ã¹ã®å©ç¹ã¯ãæ§æã容æã§ãããä»ã®ã¿ã€ãã®l2vpnãšã¯ç°ãªããã¹ã±ãŒã©ããªãã£ãåªããŠããããšã§ãïŒå¿ èŠã«å¿ããŠä»ã®ãµã€ããç°¡åã«è¿œå ã§ããŸãïŒã VPLSãšã¯ç°ãªããã«ãŒãã£ã³ã°ã€ã³ã¹ã¿ã³ã¹l2vpnã¯ã¯ãã¹ãã©ãããã©ãŒã ã®çžäºäœçšããµããŒãããŠããŸããïŒããšãã°ããžã¥ãããŒãšã·ã¹ã³ã®éïŒã
ãã®ã«ãŒãã£ã³ã°ã€ã³ã¹ã¿ã³ã¹ã§ã¯ãVPLSãäœæããããšã¯ã§ããŸããããè€æ°ã®ä»®æ³L2æ¥ç¶ãæ§æããããšã¯ã§ããŸãïŒãã ããããã¯æ¬æ ŒçãªVPLSã§ã¯ãããŸããïŒã
ã«ãŒãã£ã³ã°ããŒãã«ã¯ãVPLSãšã»ãŒåãã«èŠããŸãã
root@PE1> show route table vpn.l2vpn.0 vpn1.l2vpn.0: 2 destinations, 2 routes (2 active, 0 holddown, 0 hidden) + = Active Route, - = Last Active, * = Both 100:100:1:1/96 *[BGP/170] 00:14:00, localpref 100, from 10.1.1.1 AS path: I > to 10.0.0.2 via ge-0/0/3.0, label-switched-path pe1_to_pe2 200:200:1:2/96 *[L2VPN/170/-101] 00:17:35, metric2 1 Indirect
show l2vpn connectionsã³ãã³ãã䜿çšããŠæ¥ç¶ã®ã¹ããŒã¿ã¹ã確èªã§ããŸããåºåã¯show vpls connectionsïŒrouting-instance VPLSïŒåºåã«äŒŒãŠããŸãã
Layer2-control
ãã®ã«ãŒãã£ã³ã°ã€ã³ã¹ã¿ã³ã¹ã¯ãVPLSãã«ãããŒãã³ã°ã䜿çšããŠSTPãã¡ããªãããã³ã«ãå®è¡ããããã«èšèšãããŠããŸãããã®ã¢ããªã±ãŒã·ã§ã³ã¯ãã®èšäºã§éåžžã«ãã説æãããŠããã®ã§ãç¹°ãè¿ããŸããã
ä»®æ³ã¹ã€ãã
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[edit] routing-instances { routing-instance-name ( instance-type virtual-switch; bridge-domains { bridge-domain-name { domain-type bridge; interface interface-name; vlan-id (all | none | number); vlan-id-list [ vlan-id-numbers ]; vlan-tags outer number inner number; } } protocols { mstp { ...mstp-configuration ... } } } }
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