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NE20E-S V800R010C10SPC500 Feature Description - VPN 01

This is NE20E-S V800R010C10SPC500 Feature Description - VPN
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Application of GRE on an ERSPAN Network

Application of GRE on an ERSPAN Network

Encapsulated remote switched port analyzer (ERSPAN) is a traffic mirroring protocol that mirrors traffic to one or more ports or virtual local area networks (VLANs). The mirrored traffic is sent to a server for monitoring.

On the network shown in Figure 3-15, Device A sends traffic to Device B over the IP network. For traffic monitoring, Device A uses ERSPAN to mirror the traffic to a listening port of Device C over a GRE tunnel. The server connected to the listening port can then monitor the mirrored traffic on the listening port.

Figure 3-15 Application of GRE on an ERSPAN network

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Updated: 2019-01-03

Document ID: EDOC1100055135

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