Refer to the exhibit. Clients are reporting an issue with the voice traffic from the branch site to the central site. What is the cause of this issue?
Refer to the exhibit. Clients are reporting an issue with the voice traffic from the branch site to the central site. What is the cause of this issue?
Traffic is load-balancing over both links, causing packets to arrive out of order. This can be deduced from the routing table on R2, which shows two equal-cost EIGRP routes to 172.16.1.0 network. When packets take different paths, they can arrive out of order at the destination, which is particularly problematic for voice traffic that requires a consistent stream. The trace route displaying repeated hops further indicates that packets are being routed over both links, leading to out-of-order delivery.
no routing loop is identified in the traceroute
With routing loop I would expect no traffic to reach the destination. Traceroute shows several repeated hops but the destination is eventually reached. It also shows a delay of several ms which can be detrimental to voice traffic not so much to the other traffic. Clients are complaining about voice traffic only, therefore I go with C.
https://community.cisco.com/t5/routing/ospf-load-balance-and-cef/td-p/1514495 <== although this is discussed from a narrative using CEF, the background is the same; VOIP get's messed up.
Packets are reaching the destination.
The provider's answer seens correct. if you observe the routing table, R2 has two EIGRP routes to 172.16.1.0 and the packet came to Web Server. Another point, the question says that have problem only in traffic voice. I'm going with C too.
Looking at the Traceroute results, I see the same IP address repeated on each hop. This may be caused by repeated hops to the same IP address, causing packets to become stuck in a loop.
Typically though on a routing loop it continues on forever and it goes straight back and forth. There are also duplicate replies and it did eventually reach it. IDK. Flip a coin I guess.
C looks ok
C looks ok