– De-encapsulating and re-encapsulating a packet in a data-link frame (routers, Layer 3 switches)
– Adding or removing an 802.1Q trunking header (routers and switches)
– Matching an Ethernet frame’s destination Media Access Control (MAC) address to the MAC address table (Layer 2 switches)
– Matching an IP packet’s destination IP address to the IP routing table (routers, Layer 3 switches)
– Encrypting the data and adding a new IP header (for virtual private network [VPN] processing)
– Changing the source or destination IP address (for Network Address Translation [NAT] processing)
– Discarding a message due to a filter (access control lists [ACLs], port security
A & D
so that the data plane has all
the data it needs when making a forwarding decision? To summarize:
■ Traditional Layer 2 switches learn possible destinations by examining the source MAC
addresses of incoming frames, storing those MAC addresses as possible future destinations in the switch’s MAC address table. When new frames arrive, the Layer 2 switch
data plane then attempts to match the Ethernet frame’s destination MAC address to an
entry in its MAC address table.
■ Traditional Layer 3 routers learn destination IP subnets using routing protocols, storing
routes to reach each subnet in their routing tables. When new packets arrive, the Layer 3
data plane attempts to match the IP packet’s destination IP address to some entry in the
IP routing table.
ICMP echo request or PING is done in the control plane.
routing protocol is done in the control plane.
Netconf is used to install, manipulate, and delete the configuration of network devices, so I believe it's part of the control plane.
adding 802.1Q headers to identify the VLAN the packet belongs to which is part of switching, is done in the data plane.
Matching the MAC address is part of switching and is done in the data plane
Is E can also be Correct... Reply to an incoming ICMP echo request: occurs when a device receives an ICMP echo request (ping) and needs to send an ICMP echo reply back to the source IP address.
Correct me if am wrong
The correct answers are C and D 100% (there are 2 other questions that are part of this dump that are very similar to this question and the answers have never used ICMP as part of the control plane. Also remember that ICMP means internet CONTROL message protocol.
"The role of ICMP is to provide information about the path the data is taking from its point of origin to its destination.
It has the same basic structure as an IP packet, but despite that, it’s not really goodput. It’s there to control ‘how things are done’, therefore, is part of the control plane."
Apologies I meant that there are 2 other questions that are part of this dump that are very similar to this question and the answers have never used ICMP as part of the DATA plane)
Data Plane:
■ De-encapsulating and re-encapsulating a packet in a data-link frame (routers, Layer 3
switches)
■ Adding or removing an 802.1Q trunking header (routers and switches)
■ Matching an Ethernet frame’s destination Media Access Control (MAC) address to the
MAC address table (Layer 2 switches)
■ Matching an IP packet’s destination IP address to the IP routing table (routers, Layer 3
switches)
■ Encrypting the data and adding a new IP header (for virtual private network [VPN]
processing)
■ Changing the source or destination IP address (for Network Address Translation [NAT]
processing)
■ Discarding a message due to a filter (access control lists [ACLs], port security)
ALL of the explanations that people have posted do not say anything about ICMP (weather it's replying or sending) so is that a correct answer or not? I understand the mac thing that is spelled out very well but, it does not say anything about ICMP specifically
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