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NE40E-M2 V800R010C10SPC500 Feature Description - Segment Routing 01

This is NE40E-M2 V800R010C10SPC500 Feature Description - Segment Routing
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Single-AS SR

Single-AS SR

Single-AS Strict Explicit Path

In Figure 2-63, labels are assigned on the device side. An IGP extension supports SR to advertise label information. BGP-LS collects network topology and label information. On each forwarder, a strict explicit path is manually configured to establish an SR-TE tunnel, and the tunnel is delegated to the controller. The controller runs PCEP delivers label stack information to instruct forwarders to forward data.

Figure 2-63 Single-AS strict explicit path

Single-AS Loose Explicit Path

In Figure 2-64, labels are assigned on the device side. An IGP extension supports SR to advertise label information. BGP-LS collects network topology and label information and sends the information to the controller. The controller computes a path for an SR tunnel and runs NETCONF to deliver label stack information to forwarders to forward data.
Figure 2-64 Single-AS loose explicit path

An L3VPN within the network carries DCI services in per tenant per VPN mode. Within a DC, tenants are isolated, and the DC gateway accesses the L3VPN through a VLAN sub-interface. Tenant VPNs are carried over the primary and backup SR tunnels.

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Updated: 2019-01-02

Document ID: EDOC1100058411

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