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- About AhmedSonba
08-18-2017
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Member since
10-07-2012
69
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39
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14
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12-15-2013
02:40 PM
Greetings networkers We have two internet connections with two ISPs via Static routes one with 18 Mb while the other is 35 Mb, we are trying to Bond/Aggregate the bandwidth" of these two ISP so we can end up with one link with the total bandwidth of the two links, so far I have tried this Scenario in the Lab and it was working normally but when using Per destination load sharing I had issues with the browsing “the pages were barley opening” but VoIP calls such as Skype was working normally. Then I tired per packet this time Browsing was working normally but VoIP was having issues. Below is my configurations please review it and let me know if I am missing something. All useful answers will be rated ip cef ! ! ip sla monitor 1 type echo protocol ipIcmpEcho 4.2.2.2 source-interface FastEthernet1/0 timeout 500 frequency 10 ip sla monitor schedule 1 life forever start-time now ip sla monitor 2 type echo protocol ipIcmpEcho 5.5.5.5 source-interface FastEthernet2/0 timeout 500 frequency 10 ip sla monitor schedule 2 life forever start-time now ! track 123 rtr 1 reachability ! track 124 rtr 2 reachability ! interface FastEthernet0/0 description Inside LAN segment ip address 172.20.11.2 255.255.255.0 ip nat inside ip virtual-reassembly duplex auto speed auto no shu ! interface FastEthernet1/0 description ISP 1 ip address 192.168.3.2 255.255.255.0 ip nat outside ip virtual-reassembly duplex auto speed auto no shu ! interface FastEthernet2/0 description ISP 2 ip address 192.168.4.2 255.255.255.0 ip nat outside ip virtual-reassembly duplex auto ! ip route 0.0.0.0 0.0.0.0 192.168.3.1 track 123 ip route 0.0.0.0 0.0.0.0 192.168.4.1 track 124 ip route 0.0.0.0 0.0.0.0 fastethernet 2/0 track 124 ip route 4.2.2.2 255.255.255.255 192.168.3.1 ip route 5.5.5.5 255.255.255.255 192.168.4.1 ! ip nat inside source route-map ISP1 interface FastEthernet1/0 overload ip nat inside source route-map ISP2 interface FastEthernet2/0 overload ! access-list 10 permit 172.20.11.0 0.0.0.255 ! route-map ISP2 permit 10 match ip address 10 match interface FastEthernet2/0 ! route-map ISP1 permit 10 match ip address 10 match interface FastEthernet1/0 ! !
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10-28-2012
09:22 AM
Hi Please find below a link for a subnetting calculator for Android it will be really useful if you would use it when you are on the move. http://www.androidzoom.com/android_applications/tools/ip-subnetsupernet-calculator_gagf_download.html Hope it will Help Ahmed Sonba
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10-24-2012
07:58 AM
Hello Wim, What ports dose these servers use, in the other word what services are running on these servers , I am not really sure but I have used destination NAT with differnt port numbers to access different routers in the past but that was with private IPs , I do not know it will work for you in the situation or not , but just wanted to share an idea with you. Hope it will help Ahmed Sonba
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10-24-2012
05:45 AM
Hello Haji, You can do it for example like the following : ip dhcp excluded-address 10.0.3.1 ip dhcp excluded-address 10.0.2.1 ip dhcp excluded-address 10.0.1.1 ip dhcp excluded-address 10.0.0.1 ip dhcp pool Management network 10.0.0.1 /24 domain-name Management .com default-router 10.0.0.1 ip dhcp pool VOIP Network 10.0.1.1 /24 domain-name VOIP.com default-router 10.0.1.1 ip dhcp pool VIP network 10.0.2.1/24 domain-name Vip.com default-router 10.0.2.1 ip dhcp pool Hosts network 10.0.3.1/24 domain-name hosts.com default-router 10.0.3.1 Hope it will help Ahmed Sonba
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10-22-2012
02:25 PM
Hello Scott, Yes you can do that by using Policy-based routing, which will provide you with a tool for forwarding and routing of data packets based on policies that are perdefined by you, and you can do it either by access list, port number or some other criteria. Please refer to the following link for more information about PBR http://www.cisco.com/en/US/tech/tk365/technologies_tech_note09186a008009481d.shtml Hope it will help Ahmed Sonba
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10-22-2012
04:42 AM
Hello Jean, can you draw some sort of diagram of your network so we can have a better Idea of what exactly you want to achieve, Ahmed Sonba
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10-22-2012
02:10 AM
Hello Shizai , Check the CPU Utilization , high CPU load can cause such problems, please use the following command to check your CPU load show processes cpu you can always post the results of the show command here so we can help you with the Issue Hope it will help Ahmed Sonba
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10-21-2012
12:33 PM
Hello Johan, Normally you can not add VLANs on a VTP clients , you can only add VLANs on Server and transparent modes. please see the following qouit which is directly the from Cisco website "Client—VTP clients behave the same way as VTP servers, but you cannot create, change, or delete VLANs on a VTP client." refer to the following link http://www.cisco.com/en/US/tech/tk389/tk689/technologies_tech_note09186a0080094c52.shtml#vtp_modes Also you will get some sort of type error message like the one below if you would try to add a VLAN on vtp client mode 3500(vlan)#vlan 10 In CLIENT state, no modify attempted. VLAN 10 added: Name: VLAN0010 So no worries it will not cause any troubles for your network if you tried to add a VLAN on a VTP client. Hope it will help Ahmed Sonba
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10-21-2012
11:36 AM
Hello Sahar, If you will use the router for the inter vlan routing than its named as router on a stick, while if you used a Layer three switch than its called Layer 3 switch-Inter VLAN Routing Hope it will help Ahmed Sonba
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10-21-2012
09:06 AM
Hello Sarah, I have been using IP SLAs RTP-Based in my network for gathering statistics that measure's delay, jitter, packet loss , and also estimate's the MOS for the link, having such statistics will really help you with the monitoring and troubleshooting your voip traffic that is running on the your network. Please find below an example of the output for the IP SLA that I use for the Jitter Round Trip Time (RTT) for Index 7 Latest RTT: 180 milliseconds Latest operation start time: *22:12:37.182 UTC Latest operation return code: OK RTT Values: Number Of RTT: 1000 RTT Min/Avg/Max: 178/180/188 millisecond s Latency one-way time: Number of Latency one-way Samples: 0 Source to Destination Latency one way Min/Avg/Max: 0/0/0 milliseconds Destination to Source Latency one way Min/Avg/Max: 0/0/0 milliseconds Jitter Time: Number of SD Jitter Samples: 999 Number of DS Jitter Samples: 999 Source to Destination Jitter Min/Avg/Max: 0/1/2 milliseconds Destination to Source Jitter Min/Avg/Max: 0/2/7 milliseconds Packet Loss Values: Loss Source to Destination: 0 Loss Destination to Source: 0 Out Of Sequence: 0 Tail Drop: 0 Packet Late Arrival: 0 Packet Skipped: 0 Voice Score Values: Calculated Planning Impairment Factor (ICPIF): 13 MOS score: 4.00 Also please refer to the following link for more information about the benifits of IP SLA for the RTP http://www.cisco.com/en/US/docs/ios/12_4t/12_4t4/htrtpvip.html#wp1054761 Hope it will help Have a great weekend Ahmed Sonba
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10-21-2012
08:46 AM
Hi You will need to enable some sort of internal routing protocol on your routers if they were in the same AS or configure static routing between them in case they were in different Autonomous Systems. You can refer to the following links for more information about the BGP configuration http://www.cisco.com/en/US/tech/tk365/technologies_configuration_example09186a008009456d.shtml#directlyconnected http://www.cisco.com/en/US/tech/tk365/technologies_tech_note09186a00800c95bb.shtml Hope it will help Ahmed Sonba
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10-21-2012
08:09 AM
Hello Majed, Can you try to set the duplex to half instead of the full , some time it is better to set the speed/duplex to auto and let the two devices negotiate speed/duplex and other physical layer parameters. If this did not help Please try to post your configuration here so we can help you even better. Hope it will Help Ahmed Sonba
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10-18-2012
06:12 PM
Hello Balbeer, Can you tell us the IOS image version that you have intsalled also more deitales about your Switch model I saw on the interent that there are some IOS version of your switch dose not support PBR like the 12.2(25)SG the SupII+ will not work with the Enhanced (enterprise services)image which is required for PBR Hope it will help Ahmed Sonba
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10-18-2012
05:35 AM
Hi Yes you can, please refer to the command below : track object-number ip route ip-address/prefix-length {reachability | metric threshold} the following example, the tracking process is configured to track the reachability of 10.10.10.0/24: track 1 ip route 10.10.10.0/24 reachability Please refer to the follwoing link for more information about this command http://www.cisco.com/en/US/docs/ios/12_2t/12_2t15/feature/guide/fthsrptk.html#wp1176432 Hope it will help Ahmed Sonba
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10-18-2012
03:56 AM
Hello Jagdev, Yes you can by useing IP SLA and object tracking , please see the example below of the configuration ip sla 1 icmp-echo 10.3.12.26 source-interface FastEthernet0 " interface with the next hope" timeout 500 threshold 500 frequency 3 ip sla schedule 1life forever start-time now Now you need to configure the Object Tracking as below: track 1 ip sla 1 reachability than you can use it normally in your Standby command R1(config-track)#int fa0/0 R1(config-if)#standby 1 track 1 decrement 20 Hope it will help Ahmed Sonba
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12-15-2013
Greetings networkers We have two internet connections with two ISPs via
Static routes one with 18 Mb...
10-28-2012
Hi Please find below a link for a subnetting calculator for Android it
will be really useful if you ...
10-24-2012
Hello Wim, What ports dose these servers use, in the other word what
services are running on these s...
10-24-2012
Hello Haji,You can do it for example like the following :ip dhcp
excluded-address 10.0.3.1ip dhcp ex...
10-22-2012
Hello Scott, Yes you can do that by using Policy-based routing, which
will provide you with a tool f...
10-22-2012
Hello Jean,can you draw some sort of diagram of your network so we can
have a better Idea of what ex...
10-22-2012
Hello Shizai, Check the CPU Utilization , high CPU load can cause such
problems, please use the foll...
10-21-2012
Hello Johan, Normally you can not add VLANs on a VTP clients , you can
only add VLANs on Server and ...
10-21-2012
Hello Sahar, If you will use the router for the inter vlan routing than
its named as router on a sti...
10-21-2012
Hello Sarah, I have been using IP SLAs RTP-Based in my network for
gathering statistics that measure...
10-21-2012
Hi You will need to enable some sort of internal routing protocol on
your routers if they were in th...
10-21-2012
Hello Majed, Can you try to set the duplex to half instead of the full ,
some time it is better to s...
10-18-2012
Hello Balbeer,Can you tell us the IOS image version that you have
intsalled also more deitales about...
10-18-2012
HiYes you can, please refer to the command below :track object-number ip
route ip-address/prefix-len...
Public Statistics
| Date Registered | 10-07-2012 12:45 PM |
| Date Last Visited | 08-18-2017 03:56 AM |
| Total Messages Posted | 69 |
| Total Helpful Votes Received | 39 |
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