Cisco Ex SERIES Manual de usuario descargar pdf (Pagina 9)

Juniper Networks/Cisco Systems Switch Interoperability Cookbook

! ! !

The Catalyst 3850 will recognize the Nexus 7010 via CDP:

Cat3850#show cdp neighbors

Capability Codes: R - Router, T - Trans Bridge, B - Source Route Bridge

S - Switch, H - Host, I - IGMP, r - Repeater, P - Phone,

D - Remote, C - CVTA, M - Two-port Mac Relay

Device ID Local Intrfce Holdtme Capability Platform Port ID

Nexus7010(TBM13093202)

Ten 1/1/4 138 R S C N7K-C7010 Eth

3/10

Nexus7010(TBM13093202)

Ten 1/1/3 138 R S C N7K-C7010 Eth

3/10

And the Nexus 7010 similarly will recognize the Catalyst 3850:

Nexus7010# show cdp neighbors

Capability Codes: R - Router, T - Trans-Bridge, B - Source-Route-Bridge

S - Switch, H - Host, I - IGMP, r - Repeater,

V - VoIP-Phone, D - Remotely-Managed-Device,

s - Supports-STP-Dispute

Device-ID Local Intrfce Hldtme Capability Platform Port ID

Cat3850.englab.juniper.net

Eth3/9 156 S I WS-C3850-48P Ten1/1/3

Cat3850.englab.juniper.net

Eth3/9 170 S I WS-C3850-48P Ten1/1/4

Note that in both cases, the Cisco switches correctly identified the hostname (“Device

ID”), model number (“Platform”) and interface (“Port ID”) of the remote Cisco device.

All this information is learned via CDP, which is forwarded without any additional

configuration needed on Juniper switches running Junos.

Generic&Routing&Encapsulation&(GRE)&

Objective!

To verify the ability of Juniper and Cisco switches to tunnel traffic over an IP backbone

using GRE.

Background!!

As described in IETF RFC 2784, GRE provides a method of encapsulating traffic into IP

packets for transmission across a routed network. On the receiving end, the traffic is

decapsulated and forwarded in its original form.

Although this configuration example uses IP-in-IP encapsulation, GRE can carry

virtually any protocol, including non-routable traffic such as raw Ethernet frames, across

a routed IP network.

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Cisco Ex SERIES Manual de usuario Pagina 9