'bandwidth'에 해당되는 글 3건

  1. 2010.07.02 EIGRP equal/unequal [metric/cost] paths load balancing
  2. 2009.12.11 WAN Net Meter and LAN Net Meter
  3. 2009.03.10 Network Management and Monitoring - NetCrunch
2010.07.02 13:18

EIGRP equal/unequal [metric/cost] paths load balancing

default[k1=1, k2=0, k3=1, k4=0, k5=0]

from Source R0 to destination R4 loopback 0 100.100.100.100

All serial segments Bandwidth, Delay are the same.

Equal path load balancing.


hostname R0
interface Serial0/0
 ip address 10.0.1.1 255.255.255.252
interface Serial0/1
 ip address 10.0.2.1 255.255.255.252
interface Serial0/2
 ip address 10.0.3.1 255.255.255.252
router eigrp 1
 network 10.0.1.1 0.0.0.0
 network 10.0.2.1 0.0.0.0
 network 10.0.3.1 0.0.0.0

 

hostname R1
interface Serial0/0
 ip address 10.1.1.1 255.255.255.252
interface Serial0/1
 ip address 10.0.1.2 255.255.255.252
router eigrp 1
 network 10.0.1.2 0.0.0.0
 network 10.1.1.1 0.0.0.0

 

hostname R2
interface Serial0/0
 ip address 10.1.2.1 255.255.255.252
interface Serial0/1
 ip address 10.0.2.2 255.255.255.252
router eigrp 1
 network 10.0.2.2 0.0.0.0
 network 10.1.2.1 0.0.0.0

 

hostname R3
interface Serial0/0
 ip address 10.1.3.1 255.255.255.252
interface Serial0/1
 ip address 10.0.3.2 255.255.255.252
router eigrp 1
 network 10.0.3.2 0.0.0.0
 network 10.1.3.1 0.0.0.0

 

hostname R4
interface Loopback0
 ip address 100.100.100.100 255.255.255.255
interface Serial0/0
 ip address 10.1.1.2 255.255.255.252
interface Serial0/1
 ip address 10.1.2.2 255.255.255.252
interface Serial0/2
 ip address 10.1.3.2 255.255.255.252
router eigrp 1
 network 10.1.1.2 0.0.0.0
 network 10.1.2.2 0.0.0.0
 network 10.1.3.2 0.0.0.0
 network 100.100.100.100 0.0.0.0

 

R0#show ip route [FD=(rounddown(10^7/the lowest bandwidth)+sum_dalay/10)*256=2401792]
D    100.0.0.0/8 [90/2401792] via 10.0.2.2, 00:05:29, Serial0/1
                 [90/2401792] via 10.0.1.2, 00:05:29, Serial0/0
                 [90/2401792] via 10.0.3.2, 00:05:29, Serial0/2
     10.0.0.0/30 is subnetted, 6 subnets
D       10.1.3.0 [90/2273792] via 10.0.3.2, 00:05:29, Serial0/2
C       10.0.2.0 is directly connected, Serial0/1
D       10.1.2.0 [90/2273792] via 10.0.2.2, 00:05:29, Serial0/1
C       10.0.3.0 is directly connected, Serial0/2
D       10.1.1.0 [90/2273792] via 10.0.1.2, 00:05:29, Serial0/0
C       10.0.1.0 is directly connected, Serial0/0

 

from R0 to R1, R2, R3 successor same metric(cost) [FD,AD] -- > equal load balancing

 

R0#traceroute 100.100.100.100

Type escape sequence to abort.
Tracing the route to 100.100.100.100

  1 10.0.2.2 20 msec
    10.0.3.2 44 msec
    10.0.1.2 72 msec
  2 10.1.2.2 124 msec
    10.1.3.2 88 msec
    10.1.1.2 60 msec


R0#show ip eigrp topology all-links
IP-EIGRP Topology Table for AS(1)/ID(10.0.3.1)

P 10.1.3.0/30, 1 successors, FD is 2273792, serno 5
         via 10.0.3.2 (2273792/1761792), Serial0/2
         via 10.0.2.2 (2785792/2273792), Serial0/1
         via 10.0.1.2 (2785792/2273792), Serial0/0
P 10.0.2.0/30, 1 successors, FD is 1761792, serno 2
         via Connected, Serial0/1
P 10.1.2.0/30, 1 successors, FD is 2273792, serno 8
         via 10.0.2.2 (2273792/1761792), Serial0/1
         via 10.0.3.2 (2785792/2273792), Serial0/2
         via 10.0.1.2 (2785792/2273792), Serial0/0
P 10.0.3.0/30, 1 successors, FD is 1761792, serno 3
         via Connected, Serial0/2
P 10.1.1.0/30, 1 successors, FD is 2273792, serno 4
         via 10.0.1.2 (2273792/1761792), Serial0/0
         via 10.0.3.2 (2785792/2273792), Serial0/2
         via 10.0.2.2 (2785792/2273792), Serial0/1
P 10.0.1.0/30, 1 successors, FD is 1761792, serno 1
         via Connected, Serial0/0
P 100.0.0.0/8, 3 successors, FD is 2401792, serno 10
         via 10.0.3.2 (2401792/1889792), Serial0/2   <-- successor
         via 10.0.1.2 (2401792/1889792), Serial0/0   <-- successor
         via 10.0.2.2 (2401792/1889792), Serial0/1   <-- successor up to 4 successors by default

                                                                          up to 6 manually [maximum-paths]

R0#show ip protocols        
Routing Protocol is "eigrp 1"
  Outgoing update filter list for all interfaces is
  Incoming update filter list for all interfaces is
  Default networks flagged in outgoing updates
  Default networks accepted from incoming updates
  EIGRP metric weight K1=1, K2=0, K3=1, K4=0, K5=0
  EIGRP maximum hopcount 100
  EIGRP maximum metric variance 1
  Redistributing: eigrp 1
  Automatic network summarization is in effect
  Routing for Networks:
    10.0.1.1/32
    10.0.2.1/32
    10.0.3.1/32
  Routing Information Sources:
    Gateway         Distance      Last Update
    10.0.1.2              90      00:00:47
    10.0.2.2              90      00:00:47
    10.0.3.2              90      00:00:47
  Distance: internal 90 external 170

 

All serial segments Bandwidth, Delay are not the same.

Unequal load balancing path

 

hostname R0
interface Serial0/0
 bandwidth 10000000
 ip address 10.0.1.1 255.255.255.252
 delay 10
interface Serial0/1
 bandwidth 10000000
 ip address 10.0.2.1 255.255.255.252
 delay 15
interface Serial0/2
 bandwidth 10000000
 ip address 10.0.3.1 255.255.255.252
 delay 30
router eigrp 1
 network 10.0.1.1 0.0.0.0
 network 10.0.2.1 0.0.0.0
 network 10.0.3.1 0.0.0.0

 

hostname R1
interface Serial0/0
 bandwidth 10000000
 ip address 10.1.1.1 255.255.255.252
 delay 10
interface Serial0/1
 bandwidth 10000000
 ip address 10.0.1.2 255.255.255.252
 delay 10
router eigrp 1
 network 10.0.1.2 0.0.0.0
 network 10.1.1.1 0.0.0.0

 

hostname R2
interface Serial0/0
 bandwidth 10000000
 ip address 10.1.2.1 255.255.255.252
 delay 15
interface Serial0/1
 bandwidth 10000000
 ip address 10.0.2.2 255.255.255.252
 delay 15
router eigrp 1
 network 10.0.2.2 0.0.0.0
 network 10.1.2.1 0.0.0.0

 

hostname R3
interface Serial0/0
 bandwidth 10000000
 ip address 10.1.3.1 255.255.255.252
 delay 30
interface Serial0/1
 bandwidth 10000000
 ip address 10.0.3.2 255.255.255.252
 delay 30
router eigrp 1
 network 10.0.3.2 0.0.0.0
 network 10.1.3.1 0.0.0.0

 

hostname R4
interface Loopback0
 bandwidth 10000000
 ip address 100.100.100.100 255.255.255.255
 delay 20
interface Serial0/0
 bandwidth 10000000
 ip address 10.1.1.2 255.255.255.252
 delay 10
interface Serial0/1
 bandwidth 10000000
 ip address 10.1.2.2 255.255.255.252
 delay 15
interface Serial0/2
 bandwidth 10000000
 ip address 10.1.3.2 255.255.255.252
 delay 30
router eigrp 1
 network 10.1.1.2 0.0.0.0
 network 10.1.2.2 0.0.0.0
 network 10.1.3.2 0.0.0.0
 network 100.100.100.100 0.0.0.0

 

R0#show ip route
D    100.0.0.0/8 [90/10496] via 10.0.1.2, 00:09:58, Serial0/0      <- only successor
      10.0.0.0/30 is subnetted, 6 subnets
D       10.1.3.0 [90/13056] via 10.0.1.2, 00:09:58, Serial0/0
C       10.0.2.0 is directly connected, Serial0/1
D       10.1.2.0 [90/7936] via 10.0.2.2, 00:09:58, Serial0/1
C       10.0.3.0 is directly connected, Serial0/2
D       10.1.1.0 [90/5376] via 10.0.1.2, 00:09:58, Serial0/0
C       10.0.1.0 is directly connected, Serial0/0

 

R0#traceroute 100.100.100.100

Type escape sequence to abort.
Tracing the route to 100.100.100.100

  1 10.0.1.2 68 msec 28 msec 28 msec    <--- only successor
  2 10.1.1.2 48 msec 60 msec *

 

R0#show ip eigrp topology all-links
IP-EIGRP Topology Table for AS(1)/ID(10.0.3.1)

P 10.1.3.0/30, 1 successors, FD is 13056, serno 6
         via 10.0.1.2 (13056/10496), Serial0/0
         via 10.0.2.2 (15616/11776), Serial0/1
         via 10.0.3.2 (15616/7936), Serial0/2
P 10.0.2.0/30, 1 successors, FD is 4096, serno 2
         via Connected, Serial0/1
P 10.1.2.0/30, 1 successors, FD is 7936, serno 4
         via 10.0.2.2 (7936/4096), Serial0/1
         via 10.0.3.2 (19456/11776), Serial0/2
         via 10.0.1.2 (9216/6656), Serial0/0
P 10.0.3.0/30, 1 successors, FD is 7936, serno 3
         via Connected, Serial0/2
P 10.1.1.0/30, 1 successors, FD is 5376, serno 5
         via 10.0.1.2 (5376/2816), Serial0/0
         via 10.0.3.2 (18176/10496), Serial0/2
         via 10.0.2.2 (10496/6656), Serial0/1
P 10.0.1.0/30, 1 successors, FD is 2816, serno 1
         via Connected, Serial0/0
P 100.0.0.0/8, 1 successors, FD is 10496, serno 7
         via 10.0.1.2 (10496/7936), Serial0/0    <-- Successor, the lowest FD
         via 10.0.3.2 (20736/13056), Serial0/2  <-- NON-feasible successor, successor FD < R3 AD
         via 10.0.2.2 (13056/9216), Serial0/1    <-- Feasible successor,successor FD > R2 AD

 

Unequal path load balanced

 

hostname R0

router eigrp 1
 variance 2                  <---10496 * 2(variance) > AD value load balancing
 network 10.0.1.1 0.0.0.0
 network 10.0.2.1 0.0.0.0
 network 10.0.3.1 0.0.0.0

 

R0#show ip route
D    100.0.0.0/8 [90/13056] via 10.0.2.2, 00:01:57, Serial0/1  <-- feasible successor
                 [90/10496] via 10.0.1.2, 00:01:57, Serial0/0       <-- successor
     10.0.0.0/30 is subnetted, 6 subnets
D       10.1.3.0 [90/15616] via 10.0.3.2, 00:01:57, Serial0/2
                 [90/15616] via 10.0.2.2, 00:01:57, Serial0/1
                 [90/13056] via 10.0.1.2, 00:01:57, Serial0/0
C       10.0.2.0 is directly connected, Serial0/1
D       10.1.2.0 [90/7936] via 10.0.2.2, 00:01:57, Serial0/1
                 [90/9216] via 10.0.1.2, 00:01:57, Serial0/0
C       10.0.3.0 is directly connected, Serial0/2
D       10.1.1.0 [90/5376] via 10.0.1.2, 00:01:57, Serial0/0
C       10.0.1.0 is directly connected, Serial0/0

 

R0#traceroute 100.100.100.100

[Unequal Load Balanced]
Tracing the route to 100.100.100.100

  1 10.0.1.2 36 msec
    10.0.2.2 44 msec
    10.0.1.2 12 msec
  2 10.1.2.2 72 msec
    10.1.1.2 72 msec
    10.1.2.2 88 msec

 

R0#show ip eigrp topology all-links
P 10.1.3.0/30, 1 successors, FD is 13056, serno 10
         via 10.0.1.2 (13056/10496), Serial0/0
         via 10.0.3.2 (15616/7936), Serial0/2
         via 10.0.2.2 (15616/11776), Serial0/1
P 10.0.2.0/30, 1 successors, FD is 4096, serno 2
         via Connected, Serial0/1
P 10.1.2.0/30, 1 successors, FD is 7936, serno 4
         via 10.0.2.2 (7936/4096), Serial0/1
         via 10.0.1.2 (9216/6656), Serial0/0
         via 10.0.3.2 (19456/11776), Serial0/2
P 10.0.3.0/30, 1 successors, FD is 7936, serno 3
         via Connected, Serial0/2
P 10.1.1.0/30, 1 successors, FD is 5376, serno 5
         via 10.0.1.2 (5376/2816), Serial0/0
         via 10.0.2.2 (10496/6656), Serial0/1
         via 10.0.3.2 (18176/10496), Serial0/2
P 10.0.1.0/30, 1 successors, FD is 2816, serno 1
         via Connected, Serial0/0
P 100.0.0.0/8, 1 successors, FD is 10496, serno 11
         via 10.0.1.2 (10496/7936), Serial0/0     <- Successor, the lowest FD
         via 10.0.2.2 (13056/9216), Serial0/1     <- Feasible successor,successor FD > R2 AD    

         via 10.0.3.2 (20736/13056), Serial0/2   <- NON-feasible successor, successor FD < R3 AD



출처 : http://blog.naver.com/bobos_neo


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2009.12.11 18:27

WAN Net Meter and LAN Net Meter

Net Meter monitors network traffic through all network connections on the computer it's installed on, and displays real-time graphical and numerical downloading and uploading speeds. The software supports to display transfer rates of multiple network connections at the same time. It also logs network traffic and provides daily, weekly, monthly, and summary traffic reports. And start days of week and month are customizable. The program allows you to setup a notification to get an alert when you exceed a certain amount of bandwidth usage. And, traffic stopwatch enables you to test bandwidth speed of connections. You can also record transfer rates of connections in plain text or Microsoft Excel CSV format.

Net Meter supports running as a system service that monitors bandwidth usages and generate traffic reports automatically without log on.

Net Meter works with the majority network connections including phone modems, DSL, cable modem, LAN, satellite, wireless, VPN and more. The software is full compatible with Windows 98, Windows Me, Windows NT 4.0, Windows 2000, Windows XP, Windows 2003, Windows Vista, and Windows 7.


Top 11 Benefits of Net Meter:

  1. Show real-time downloading and uploading speeds
    Net Meter monitors traffic of all network connections and displays real-time graphical and numerical data transfer rates. You can see your real-time download and upload rates. You can know how efficient your Internet connection is.
  2. Show bandwidth consumption at any moment
    It's very useful if you've been the victim of Spyware or an unauthorized program is accessing network resources.
  3. View transfer rates of multiple network connections at the same time
    The software supports to show transfer rates for multiple connections at the same time. You can view WAN and LAN transfer rates at a time.
  4. Bandwidth usage notification
    The software allows you to setup a notification to get an alert when you exceed a certain amount of bandwidth usage.
  5. Traffic reports
    Net Meter logs network traffic and provides daily, weekly, monthly, and summary traffic reports. It's easy to know how many bytes have been downloaded and uploaded every day / week / month. It's also possible to specify start day of month and week to fit your billing cycle.
  6. Run as a system service
    A system service can be run without log on. The service is able to monitor bandwidth usage, record rates, and generate traffic report in txt, csv, and html formats every N seconds. You can export a traffic report in html file to your web directory, and then browse the file to view bandwidth usage anywhere and anytime.
  7. Start day of month and week
    If your ISP only offers you a limited bandwidth a month or week, and the billing cycle may be not started with 1st or Sunday. Then you have to customize the start day of month or week.
  8. Traffic stopwatch
    Traffic stopwatch that tests bandwidth speeds. For example, you can test speeds of your broadband connection. It shows the maximum, minimum and average transfer rates through a specific adapter in a period.
  9. Traffic rates recorder
    The recorder allows you to record transfer rates of connections and save data to a plain text or Microsoft Excel CSV file. Then, you can use the file for your needs.
  10. No extra drivers needed
    The Bandwidth Monitor doesn't install extra drivers to your computer. This will keep your system clean and reliable.
  11. Small and minimal resources requirement
    Net Meter is a very small software. Size of it is only 1MB, but offers more features. And it requires minimal system resources (CPU, RAM, and HDD).

Net Meter Key Features:

  • Monitor traffic of all network connections on current computer
  • Display real-time graphical and numerical data transfer rates
  • Support multiple network connections at the same time
  • Support running as a system service that monitors bandwidth usages and generate traffic reports automatically
  • Bandwidth usage notification (notify user by playing sound, computer beep, sending email, running a program)
  • Log transfer rates and provide daily, weekly, monthly, and summary traffic report, plus export to .txt, .html, and .csv file
  • Traffic stopwatch that tests bandwidth speeds
  • Traffic recorder that records transfer rates and saves to plain text or Microsoft Excel CSV file
  • Work with majority network connections including phone modems, DSL, cable modem, LAN, satellite, wireless, VPN, and more
  • Rate scale that indicates traffic rates value
  • Show in either KB/sec (kilobytes per second) or kbps (kilobits per second)
  • Network connection speed is customizable
  • Customize colors and fonts
  • Show real-time network traffic graph in system tray
  • Show time in traffic graph
  • Show traffic graph in line or column style; and column width and space can be customized
  • Show average download and upload lines in traffic graph
  • Include complete window configuration and view options
  • Require minimal system resources (CPU, RAM, and HDD)
  • Full compatible with Windows 98, Windows Me, Windows NT 4.0, Windows 2000, Windows XP, Windows Vista, and Windows 7


원문 : http://www.hootech.com


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2009.03.10 16:47

Network Management and Monitoring - NetCrunch

< Network discovery wizard >

NetCrunch는 현존하는 sub networks, servers, routers, switches, printers 를 자동으로
찾아냅니다.
자동으로 발견하는 항목
Scanning method
Node type
SNMP community string
Scanning range
Scanning frequency
Services to be monitored
< Map of the logical network topology >

NetCrunch는 네트워크 지도를 “논리적 지도” 및 “물리적 지도”를 지원합니다.
< Filtered view of company servers >

NetCrunch는 자동적으로 미리 정의한 필터링된 맵을 볼 수 있습니다.
< Concise presentation of detailed real-time data >

현재 네트워크 상태를 색깔을 구분해서 비쥬얼 하게 모니터링 할 수 있습니다.
< Web access >

장소에 구애 받지 않고 어디서나 웹을 통해서 모니터링이 가능합니다.
< Network services monitored on a node >

TCP/UDP services, FTP, POP3, HTTP, SSH, HTTPS, SMTP, IMAP, LDAP, DNS 등을 실시간으로 모니터링합니다.
< Network monitoring >

SNMP를 이용한 성능 모니터링 및 시스템 성능 모니터링이 가능합니다.
< Monitoring traffic chart >

모니터링 내용을 차트로 비쥬얼하게 제공합니다.
< Event log window >

Routers, switches, Unix systems 로그 모니터링 기능을 제공합니다.
< An alert configuration wizard >

NetCrunch는 다양한 이벤트를 제공합니다.
SNMP threshold broken
Windows performance threshold breached
Novell NetWare performance threshold broken
Network service availability threshold breached
Host up/down
Network service up/down
SNMP trap received
Host interface up/down
Syslog message received
Windows service stopped, running, paused
Host discovered, deleted, enabled, disabled
< Alerting actions >

문제발생시 E-Mail, Pager, SMS, SNMP, ICQ, syslog message를 제공합니다.
< Configuration of alerting actions >

1분 후 관리자, 5분 후 팀장, 10분 후에는 부서장에게 이메일로 알리는 기능을 제공합니다.
< SNMP management >

< Service scanner >
< Bandwidth >

다양한 네트워크 진단을 할 수 있습니다.
Graphical ping
Bandwidth
Traceroute
NS lookup
Service/port scanner
Network node scanner
SNMP MIB browser
SNMP information browser
< Utilization trends >
< A sample report >

http://www.adremsoft.kr

Adrem Software Korea.   NetCrunch , NMS.   02-554-9451

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