Click the Exhibit button.
Click the Exhibit button.
What happens if the packet shown in the exhibit is received by a device running Junos OS?
A . The packet is received by the RE first and then redirected to the PFE.
B . The packet is received by the PFE first and then redirected to the RE.
C . The packet is handled by the PFE alone.
D . The packet is handled by the RE alone.
Answer: B
Explanation:
IP options are exception traffic
Packets addressed to the chassis, such as routing protocol updates, Telnet sessions, pings, traceroutes, and replies to traffic sourced from the RE;
• IP packets with the IP options field (options in the packet’s IP header are rarely seen, but the PFE was purposely designed not to handle IP options; packets with IP options must be sent to the RE for processing); and
• Traffic that requires the generation of Internet Control Message Protocol (ICMP) messages.
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