Transcript Network Assessment and Recommendation for Acme

Network Assessment and
Recommendation
for
A Business Like Yours
Systems
by
Jack Ng
i.LAN Systems, Inc.
Copyright, 1998 © i.LAN Systems, Inc.
Data Collected
Average Utilization during the Day
Average Utilization during the Day
25
20
Utilization
15
10
5
0
1
1B
1C
1D
Port
1E
1F
4
Data Collected … more
Protocol Mix
90
80
70
60
50
%
IP (%)
IPX (%)
Local IPX (%)
40
30
20
10
0
1
1B
1C
1D
Port
1E
1F
4
Data Collected … more
Wide Area Network Utilization
Average Utilization During the Day relative to CIR (%)
30.00
25.00
15.00
10.00
5.00
Locations
M
in
ne
ap
ol
is
Ne
w
Y
or
k
Ne
w
Ha
ve
n
Sa
n
Di
eg
o
Fe
Cl
ev
el
an
d
Sa
nt
a
Da
lla
s
0.00
Cu
lv
er
Ci
ty
Ph
oe
ni
x
Utilization
20.00
Network Problems Found
• 38% of Traffic to Acme and Internet Lost.
• RIP Broadcasts waste 30% of Bandwidth
to Internet.
• Over 9,000 ICMP Redirects in One Hour Slowed Internet Access by Remote Users.
More Problems Found ...
• Excessive Remote Collisions in I.S.’s LAN
Segment - over 463 per second.
• IPX Routing Problem in I.S.’s LAN.
• Incorrect IP Addresses.
• Inefficient Use of Network Numbers
causing unnecessary Internal IP
Routings.
More Problems Found ...
• Inefficient Use of Network Numbers
causing unnecessary Internal IP
Routings.
• Circuit to Remote Site reaching close to
recommended average maximum
utilization of 30%.
• Lack of Disaster Recovery Plan or Site.
Resolution
• Reduced Lost Traffic to Acme and
Internet to less than 1% by replacing
Wellfleet.
• Reduced ICMP Redirects to less than 40
per hour with change of default gateway
for AccessBuilder.
• Eliminated Unnecessary IP Subnets in
Port 1, thus reducing internal routings.
Resolution … more
• Network Address Translation completed
for 192.168.x.x network, eliminating
upcoming network address problem.
• To control and correct erroneous IP
addresses - prototyped DHCP at two sites
in the 192.168.x.x network for
deployment throughout WAN.
Recommendation
• Collapse networks in Port 1 and Port 1B
to One.
• Eliminate one of the network cards for
Server(s) connecting to Port 1B.
• Replace LinkSwitch 500 in Port 1 with a
High-Performance 10/100 switch, such as
a Cisco 2924 XL.
Recommendation
- Collapsing Port 1 and Port 1B Networks to One
Port 1
Server Room
IP Net
172.10.160.0 255.255.255.0
IPX Net FBCDE6ED
Rack A
LinkBuilder FMSII
12-Port Hub
LinkSwitch 500
Server Room
Servers
IBM AS/400
LinkBuilder FMSII
12-Port Hub
LinkBuilder FMSII
12-Port Hub
Servers
IBM AS/400
LinkBuilder FMSII
12-Port Hub
FIPN
FIPN
Rack A
Servers
Servers
Cisco 2924 XL
Port 1B
IP Net
Rack C
172.10.161.0 255.255.255.0
172.10.166.0 255.255.255.192
IPX Net FBCDE6EC
LinkBuilder FMSII
12-Port Hub
LinkBuilder FMSII
24-Port Hub
Rack C
LinkBuilder FMSII
12-Port Hub
Rack A
LinkBuilder FMSII
24-Port Hub
H8 -LinkBuilder FMSII
24-Port Hub
LinkBuilder FMSII
24-Port Hub
H9 -LinkBuilder FMSII
24-Port Hub
LinkBuilder FMSII
24-Port Hub
Rack A
LinkBuilder FMSII
24-Port Hub
H8 -LinkBuilder FMSII
24-Port Hub
LinkBuilder FMSII
24-Port Hub
H9 -LinkBuilder FMSII
24-Port Hub
Benefits
• Eliminate IPX Routing Problems between
Port 1 and Port 1B.
• Enhance Access to Servers by users in
Port 1B.
• Eliminate Remote Collision Problem, thus
increase performance.
Recommendation
• Replace LinkSwtich 1000 in Port 1C with
Cisco 2924 XL.
Recommendation
- Replace LinkSwitch 1000 in Port 1C
Port 1C
Port 1C
IP Net
172.10.169.0 255.255.255.0
172.10.162.0 255.255.255.0
IPX Net FBCDE6EB
IP Net
172.10.169.0 255.255.255.0
172.10.162.0 255.255.255.0
IPX Net FBCDE6EB
Rack A
Rack A
LinkSwitch 1000
Cisco 2924 XL
H1
H2
H3
H4
H5
H11
H1
H10
H2
H12
H3
H1 thru H7
and H10 thru H12
LinkBuilder FMSII
24-Port Hub's
H4
H5
H6
H7
H6
H7
Servers
H11
H10
H12
H1 thru H7
and H10 thru H12
LinkBuilder FMSII
24-Port Hub's
Benefits
• Provide for Growth of LAN in Port 1C.
• Improve Performance of LAN in Port 1C.
• But most of the gains would not be
realized until the Servers are equipped
with 10/100 Network Interface Cards.
Recommendation
• Change to 10.x.x.x Private Class B
Network.
• Deploy DHCP to make the above change.
Benefits
• Eliminate Address Constraint.
• Eliminate Dependency on Address
Assignment by Internet Service Provider.
• Ease of Control and Management with
DHCP.
Recommendation
for 12 Months and beyond
• Replace NetBuilder II in LAN Routing with
Layer 3 (IP and IPX) Ethernet Switch.
• Deploy GigaEthernet or at least
EtherChannel at 800Mbps to switches in
IDF’s.
Recommendation
for 12 Months and beyond
• Consolidate all servers to Server Room.
• Deploy GigaEthernet to Servers where
needed and possible.
Recommendation
for 12 Months and beyond
Server Room
IP Net
172.10.169.0 255.255.255.0
172.10.162.0 255.255.255.0
IPX Net FBCDE6EB
LinkBuilder FMSII
12-Port Hub
Servers
IBM AS/400
Rack A
LinkBuilder FMSII
12-Port Hub
Cisco 2924 XL
Cisco 2924 XL
H1
EtherChannel
800Mbps
IP Net
172.10.160.0 255.255.255.0
IPX Net FBCDE6ED
H2
EtherChannel
800Mbps
H11
H10
H3
H12
H4
H6
H5
H1 thru H7
and H10 thru H12
LinkBuilder FMSII
24-Port Hub's
Server
Room
Servers
H7
Cisco 5500
Running Layer 3
Switching
Relocated to Server Room
Rack C
Servers
LinkBuilder FMSII
12-Port Hub
Rack B
LinkBuilder FMSII
24-Port Hub
Rack A
LinkBuilder FMSII
24-Port Hub
H8 -LinkBuilder FMSII
24-Port Hub
LinkBuilder FMSII
24-Port Hub
H9 -LinkBuilder FMSII
24-Port Hub
IP Net
172.10.163.66 255.255.255.0
IPX Net FBCDE6EA
LinkBuilder FMSII
24-Port Hub
Rack B
IP Net
172.10.164.0 255.255.255.0
IPX Net FBCDE6EA
LinkBuilder FMSII
24-Port Hub's
IP Net
192.168.3.209 255.255.255.240
IPX Net FBCDE6E7
Lab
Rack B
IP Net
172.10.165.0 255.255.255.0
IPX Net FBCDE6E8
NetBuilder II Router
IP Net
172.10.168.0 255.255.255.0
LinkBuilder FMSII
24-Port Hub's
LinkSwitch 500
LinkBuilder FMSII
24-Port Hub's
Benefits
• Increase Performance between LAN
Ports.
• This would be critical as IP Traffic
increases due to deployment of Exchange
and other IP-based Applications.
• Ease of Management and Control with
Servers in Server Room.
Benefits
• GigaEthernet would give more room to
grow while providing greater ease of
implementation and management versus
other technologies such as ATM and
FDDI.
Recommendation
• Replace Circuit to Remote Site with Full
T1 Frame Relay.
• Setup Remote Site as a Disaster
Recovery Backup site for Local Site.
Benefits
• Provide Growth Capacity to Remote Site.
• Provide Disaster Recovery Site.
Benefits Review
• Gained back 40% of bandwidth to
Internet.
• Reclaimed performance by Remote Users
using AccessBuilders.
• Eliminated one of the bottlenecks in the
Server LAN (Port 1) - internal IP routings.
Benefits Review
• Enhance Access to Servers by users
currently in Port 1B by eliminating
excessive collisions and IPX routing
problems.
• Increase performance and growth for
users in Port 1C.
Benefits Review
• Eliminate Address Constraint and
Dependency.
• Ease of Control and Management of IP
Addressing.
• Ease of Management and Control of
Servers.
Benefits Review
• Substantial increase in growth and
performance with GigaEthernet while
retain ease of management and
deployment.
• Growth and Performance for Remote
Site.
• Disaster Recovery Plan and Site.