Link aggregation and IP multipathing both offer some benefits for network performance and reliability. Identify
two correct statements.
A.
IPMP requires full duplex, point-to-point links.
B.
A router is a single point of failure for link aggregation.
C.
Link aggregation allows a standby interface to be automatically enabled if another interface fails.
D.
Depending on load balancing algorithms, packets may not be balanced among all IPMP active interfaces.
E.
Link aggregation uses additional interfaces to improve performance, without requiring additional IP address.
Explanation:
C: If LACP (Link Aggregation Control Protocol) cannot aggregate all the ports that are compatible (for example,
the remote system might have more restrictive hardware limitations), then all the ports that cannot be actively
included in the channel are put in hot standby state and are used only if one of the channeled ports fails.
E: Link aggregations provide high availability and higher throughput by aggregating multiple interfaces at the
MAC layer. IP Multipathing (IPMP) provides features such as higher availability at the IP layer. Both IPMP and
Link Aggregation are based on the grouping of network interfaces, and some of their features overlap, such as
higher availability. These technologies are however implemented at different layers of the stack, and have
different strengths and weaknesses.
Incorrect:
Not A: MP is built into Oracle Solaris and does not require any special hardware. Any interface that is supported
by Oracle Solaris can be used with IPMP. However, IPMP does impose the following requirements on your
network configuration and topology:
/All interfaces in an IPMP group must have unique MAC addresses.
/ All interfaces in an IPMP group must be of the same media type.
/ All interfaces in an IPMP group must be on the same IP link
Not B: A switch, not a router, would be a single point of failure of link aggregation (as it works on the Mac layer
and not on the IP layer.
not D: Internet Protocol Network Multipathing (IPMP) provides fault-tolerance and load balancing across
multiple network interface cards. By using IPMP, you can configure one or more interfaces into an IP
multipathing group. After configuring IPMP, the system automatically monitors the interfaces in the IPMP group
for failure. If an interface in the group fails or is removed for maintenance, IPMP automatically migrates, or fails
over, the failed interface’s IP addresses