Chapter 11 Assignment
11.1 Define Bandwidth, Delay, Jitter and Loss?
Bandwidth refers to the speed of a link, in bits per second (bps).
Delay can be described as one-way delay or round-trip delay. One-way
delay refers to the time between sending one packet and that same
packet arriving at the destination host
Jitter refers to the variation in one-way delay between consecutive
packets sent by the same application
loss refers to the number of lost messages, usually as a percentage of
packets sent
11.2 What is the benefit of using 802.1q field in Ethernet header?
Standard for distributing virtual LAN info across multiple switches. It
enables you to have users in the same VLAN distributed among
different switches but still being treated as if they were connected to
the same switch
11.3 Differentiate between Policing and Shaping.
Policing Shaping
1__________________________________ CHA__PTER 11 ASSIG_NMENT__________________
, Assignment
1. It 1 Shapers measure the
measures traffic rate over time for
the traffic comparison to the
rate over configured shaping rate.
time for
comparison 2 Shapers allow for
to the
bursting after a period of
configured
inactivity.
policing
rate.
3 Shapers are enabled on
2. It allows an interface for egress
for a burst (outgoing packets).
of data
after a 4 Shapers slow down
period of packets by queuing them
inactivity. and over time releasing
them from the queue at
3. It is enabled on an interface, in either the shaping rate.
direction, but typically at ingress.
5 Shapers use queuing
4 It can discard excess messages but can also tools to create and
re-mark the message so that it is a candidate schedule the shaping
for more aggressive discard later in its journey. queues, which is very
important for the same
reasons discussed for
output queuing.
Chapter 12
12.1 Define First Hop Routing Protocol (FHRP)?
11.1 Define Bandwidth, Delay, Jitter and Loss?
Bandwidth refers to the speed of a link, in bits per second (bps).
Delay can be described as one-way delay or round-trip delay. One-way
delay refers to the time between sending one packet and that same
packet arriving at the destination host
Jitter refers to the variation in one-way delay between consecutive
packets sent by the same application
loss refers to the number of lost messages, usually as a percentage of
packets sent
11.2 What is the benefit of using 802.1q field in Ethernet header?
Standard for distributing virtual LAN info across multiple switches. It
enables you to have users in the same VLAN distributed among
different switches but still being treated as if they were connected to
the same switch
11.3 Differentiate between Policing and Shaping.
Policing Shaping
1__________________________________ CHA__PTER 11 ASSIG_NMENT__________________
, Assignment
1. It 1 Shapers measure the
measures traffic rate over time for
the traffic comparison to the
rate over configured shaping rate.
time for
comparison 2 Shapers allow for
to the
bursting after a period of
configured
inactivity.
policing
rate.
3 Shapers are enabled on
2. It allows an interface for egress
for a burst (outgoing packets).
of data
after a 4 Shapers slow down
period of packets by queuing them
inactivity. and over time releasing
them from the queue at
3. It is enabled on an interface, in either the shaping rate.
direction, but typically at ingress.
5 Shapers use queuing
4 It can discard excess messages but can also tools to create and
re-mark the message so that it is a candidate schedule the shaping
for more aggressive discard later in its journey. queues, which is very
important for the same
reasons discussed for
output queuing.
Chapter 12
12.1 Define First Hop Routing Protocol (FHRP)?
