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Question 61 - HPE7-A01 discussion

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A network administrator is attempting to troubleshoot a connectivity issue between a group of users and a particular server The administrator needs to examine the packets over a period of time from their desktop; however, the administrator is not directly connected to the AOS-CX switch involved with the traffic flow.

What statements are correct regarding the ERSPAN session that needs to be established on an AOS-CX switch'? (Select two )

A.
On the source AOS-CX switch, the destination specified is the switch to which the administrator's desktop is connected
Answers
A.
On the source AOS-CX switch, the destination specified is the switch to which the administrator's desktop is connected
B.
The encapsulation protocol used is GRE.
Answers
B.
The encapsulation protocol used is GRE.
C.
The encapsulation protocol used is VXLAN.
Answers
C.
The encapsulation protocol used is VXLAN.
D.
The encapsulation protocol is UDP.
Answers
D.
The encapsulation protocol is UDP.
E.
On the source AOS-CX switch, the destination specified is the administrators desktop
Answers
E.
On the source AOS-CX switch, the destination specified is the administrators desktop
Suggested answer: B, E

Explanation:

These are the correct statements regarding the ERSPAN session that needs to be established on an AOS-CX switch for a network administrator to examine the packets over a period of time from their desktop. ERSPAN (Encapsulated Remote Switched Port Analyzer) is a feature that allows an AOS-CX switch to mirror traffic from one or more source ports or VLANs to a remote destination IP address over a GRE (Generic Routing Encapsulation) tunnel. The destination IP address must be the IP address of the administrator's desktop, which must have a packet capture tool installed to receive and analyze the mirrored traffic. The encapsulation protocol used for ERSPAN is GRE, which adds a header to the mirrored packets with information such as source and destination IP addresses, session ID, etc. The other statements are incorrect because they either do not specify the correct destination IP address or do not use ERSPAN or GRE.

Reference: https://www.arubanetworks.com/techdocs/AOS-CX/10.04/HTML/5200-6728/bk01-ch02.html https://www.arubanetworks.com/techdocs/AOS-CX/10.04/HTML/5200-6728/bk01-ch03.html

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asked 16/09/2024
jaimie lloyd
44 questions
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