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Exam HPE6-A72 topic 1 question 10 discussion

Actual exam question from HP's HPE6-A72
Question #: 10
Topic #: 1
[All HPE6-A72 Questions]

Refer to the exhibit.

The above scenario shows a packet from the Server destined for the Firewall. Switch-A and Switch-B are bundled as VSF stack. The LAG between the VSF stack and the firewall indicates a hash function to forward the packet on port 2/1/2.
Which statement is true regarding how Switch-A will forward the packet?

  • A. Switch-A will forward the packet on port 1/1/2. VSF will override the typical LAG hash function used for the physical interface selection.
  • B. Switch-A will drop the packet. Multi-Chassis lag to multi-chassis lag is not a supported feature of VSF.
  • C. Switch-A will encapsulate the packet using GRE to forward to Switch-B in order for the packet to egress on port 2/1/2 per the hash function.
  • D. Switch-A will forward the packet along the VSF link to Switch-B so that it will egress on port 2/1/2 per the hash function.
Show Suggested Answer Hide Answer
Suggested Answer: A 🗳️
Community vote distribution
A (93%)
7%
by seb6869 at July 26, 2021, 1:47 p.m.

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seb6869
Highly Voted 2 years, 8 months ago
A is correct.
upvoted 14 times
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RAADC
Highly Voted 2 years, 8 months ago
I believe A is correct.
upvoted 9 times
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edurjo
Most Recent 1 month, 3 weeks ago
Selected Answer: A
Resposta correta: A. Switch-A will forward the packet on port 1/1/2. VSF will override the typical LAG hash function used for the physical interface selection. Switch-A encaminhará o pacote pela porta 1/1/2. O VSF substituirá a função de hash típica de LAG usada para a seleção da interface física. O VSF substitui a função de hash típica de LAG. O Switch-A vai preferir usar as suas interfaces locais em vez de usar a função de hash típica para selecionar uma interface física de outra pilha ou switch no VSF, e se ele tiver várias interfaces locais, o hash será utilizado para decidir qual delas será usada. Assim, o tráfego pode ser enviado pela porta 1/1/2, caso essa seja a escolhida pelo hash da pilha VSF.
upvoted 1 times
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[Removed]
8 months, 1 week ago
A, VSF overrides LAG hash
upvoted 2 times
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aa22444
8 months, 4 weeks ago
Selected Answer: A
Study Guide Page 460 -> "A VSF fabric is similar to any switch configured with link aggregation. It learns MAC addresses on a logical LAG entity, as opposed to the physical interfaces. It selects one LAG member linkforforwarding each conversation. However, VSF overrides the typical LAG hash function used for physical interface selection. VSF member prefers to use their own local links, and to avoid using VSF links. If the member has multiple local links in the aggregation, then it uses the typical hashing mechanism to choose between those. "
upvoted 4 times
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SahilERT
10 months ago
A is correct answer, Page 466 Student guide VSF overrides the typical LAG hash function used for physical interface selection. VSF member prefers to use their own local links, and to avoid using VSF links. If the member has multiple local links in the aggregation, then it uses the typical hashing mechanism to choose between those
upvoted 3 times
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wasi007
1 year, 5 months ago
Selected Answer: A
VSF override LAG hash
upvoted 2 times
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kalitester
1 year, 5 months ago
Selected Answer: D
shortest way to get the fw
upvoted 1 times
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myridanic
1 year, 6 months ago
A is correct, because override hash function..
upvoted 2 times
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Mattyeyec
1 year, 7 months ago
Selected Answer: A
A is indeed correct
upvoted 4 times
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bpexam
1 year, 9 months ago
Selected Answer: A
A is correct.
upvoted 3 times
XalaGyan
1 year, 7 months ago
Load Balancing will happen by default over the VSF. It's interesting to note that with Aruba switches, front plane stacking, such as VSX and VSF uses shortest-path forwarding by default. This means that if there is an upstream / downstream LAG it will take this path first before using the load balancing hashing algorithm. the hashing algorithm kicks in if there is more than one uplink / downlink port on a single member VSF/VSX switch. The reason for shortest-path forwarding (I just made up that term - not sure what we call it inside Aruba) is it reduces the potential traffic across the VSF/VSX links as traffic will prefer the direct path, not the ISL path. This can play an important part in the design of VSF/VSX as you might not need 8 ports between your member switches - but it depends what your uplinks are and how much east-west traffic there is.
upvoted 2 times
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kamalnoke
2 years ago
A is correct VSF will override the typical LAG hash function used for the physical interface selection.
upvoted 6 times
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akkarin
2 years, 6 months ago
A is correct. VSF will override lag hash functions.
upvoted 6 times
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Community vote distribution
A (35%)
C (25%)
B (20%)
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