For a limited time, students with a valid .edu email can get Windows 7 for $29.99. This offer expires January 3, 2010 at 12:00 p.m. This is the full install with no previous version needed.
The details on the program can be found here:
http://www.win741.com/
This is the official Microsoft link to the above page:
http://www.microsoft.com/student/en/us/software/windows-7.aspx
Here is a link the the Windows 7 upgrade advisor so you can check hardware compatibility:
http://www.microsoft.com/windows/windows-7/get/upgrade-advisor.aspx
Thursday, December 17, 2009
Wednesday, December 16, 2009
CCNA Certified Network Engineer - Chicago, IL
Modis is currently seeking a qualified CCNA Certified Network Engineer for exciting contract opportunities with our nationwide Telecommunications clients in the greater Chicagoland area.
PROJECT DESCRIPTION
The CCNA Network Engineer will be working to provide LAN and WAN design, implementation and support services to enterprise business customers in the Chicago area.
Candidates must have excellent Cisco Networking experience, including a thorough understanding of Layer 1-Layer 3 technologies. Minimum technical requirements include demonstrated real-world experience in the installation and support of Cisco Enterprise Routers and Cisco Catalyst Switches at a customer site. In addition to Cisco Routers and Switches, candidates should have a good foundation in data circuits and transports.
Strong Frame Relay, ATM, IPFR and MPLS experience is required in addition to strong Cisco Router configurations using advanced WAN protocols BGP, OSPF and EIGRP.
Candidates should also have experience working with Network Management & Monitoring Tools, such as HP OpenView, VitalNet, NetView, etc as well as ticketing tools (Remedy, Peregrine, HEAT, Magix).
The ideal candidate will be highly customer focused with demonstrated experience in the above areas.
REQUIRED SKILLS & CERTIFICATIONS
- An active CCNA certification or higher is required.
- Minimum 5 years hands-on experience with Cisco Routers & Switches, including configurations with BGP, OSPF an EIGRP protocols
- Intermediate experience with ATM, Frame Relay, VoIP and MPLS is required
- Strong Layer 1-Layer 3 support
- Experience with WAP/WiFi and Wireless protocols is preferred
- Experience with VPN concentrators/Firewalls and security is preferred
ADDITIONAL INFORMATION/HOW TO APPLY
For immediate consideration, please respond to (see below) with your updated MS Word resume and contact information.
Pay Rate: $30-$38/hour W2
Duration: 12 Months 36 Months
Locations: Arlington Heights, IL; Lisle, IL; Hickory Hills, IL
*Please note that qualified candidates MUST be eligible to work in the US for any employer without the need for visa sponsorship. We offer W2 rates only so please no Independent Contractors, Corporation or Recruiter inquiries*
Desired Skills:
Non-Tech Skills:
About Modis, Inc. - Chicago:
Modis is one of the world's largest and most respected providers of Information Technology Resource Management (ITRM) services and solutions. Today, Modis delivers world-class ITRM solutions to over 1,000 clients in 60 markets throughout the United States, Canada, the United Kingdom, and Western Europe.
Pay Rate: 30/ph - 38/ph
Start Date: ASAP
Emp. Type: Contract
Duration: 1-3 years
# of Openings: 1
Location: Chicago, IL -
Overtime Pay: None
Job Number: 36087716 : JSCCNAIL
Date Posted: 12/16/2009
Modis, Inc. - Chicago
Other jobs with this company.
Attention: Recruiter
One Oakbrook Terrace
Suite 708
Oak Brook Terrace, IL 60181
Call: 630-268-1445
Email: Send an email to Heather.Thompson.7D258.84D58@mail.jobserve.com
PROJECT DESCRIPTION
The CCNA Network Engineer will be working to provide LAN and WAN design, implementation and support services to enterprise business customers in the Chicago area.
Candidates must have excellent Cisco Networking experience, including a thorough understanding of Layer 1-Layer 3 technologies. Minimum technical requirements include demonstrated real-world experience in the installation and support of Cisco Enterprise Routers and Cisco Catalyst Switches at a customer site. In addition to Cisco Routers and Switches, candidates should have a good foundation in data circuits and transports.
Strong Frame Relay, ATM, IPFR and MPLS experience is required in addition to strong Cisco Router configurations using advanced WAN protocols BGP, OSPF and EIGRP.
Candidates should also have experience working with Network Management & Monitoring Tools, such as HP OpenView, VitalNet, NetView, etc as well as ticketing tools (Remedy, Peregrine, HEAT, Magix).
The ideal candidate will be highly customer focused with demonstrated experience in the above areas.
REQUIRED SKILLS & CERTIFICATIONS
- An active CCNA certification or higher is required.
- Minimum 5 years hands-on experience with Cisco Routers & Switches, including configurations with BGP, OSPF an EIGRP protocols
- Intermediate experience with ATM, Frame Relay, VoIP and MPLS is required
- Strong Layer 1-Layer 3 support
- Experience with WAP/WiFi and Wireless protocols is preferred
- Experience with VPN concentrators/Firewalls and security is preferred
ADDITIONAL INFORMATION/HOW TO APPLY
For immediate consideration, please respond to (see below) with your updated MS Word resume and contact information.
Pay Rate: $30-$38/hour W2
Duration: 12 Months 36 Months
Locations: Arlington Heights, IL; Lisle, IL; Hickory Hills, IL
*Please note that qualified candidates MUST be eligible to work in the US for any employer without the need for visa sponsorship. We offer W2 rates only so please no Independent Contractors, Corporation or Recruiter inquiries*
Desired Skills:
Non-Tech Skills:
About Modis, Inc. - Chicago:
Modis is one of the world's largest and most respected providers of Information Technology Resource Management (ITRM) services and solutions. Today, Modis delivers world-class ITRM solutions to over 1,000 clients in 60 markets throughout the United States, Canada, the United Kingdom, and Western Europe.
Pay Rate: 30/ph - 38/ph
Start Date: ASAP
Emp. Type: Contract
Duration: 1-3 years
# of Openings: 1
Location: Chicago, IL -
Overtime Pay: None
Job Number: 36087716 : JSCCNAIL
Date Posted: 12/16/2009
Modis, Inc. - Chicago
Other jobs with this company.
Attention: Recruiter
One Oakbrook Terrace
Suite 708
Oak Brook Terrace, IL 60181
Call: 630-268-1445
Email: Send an email to Heather.Thompson.7D258.84D58@mail.jobserve.com
Thursday, December 10, 2009
More Than You May Have Wanted To Know on . . .
The Real Scoop on the OSPF Reference Bandwidth by Jeff Suggs:
I think I figured out something about the OSPF cost calculation when the reference bandwidth is changed. I have not completely tested this out yet, but this is what I am thinking.
It actually is not completely related to changing the reference bandwidth, but that is where we see the problem show up from the examples we are using.
The cost formula is given by the following:
cost=reference bandwidth/bandwidth = 10^8/bw in Kbps
There is however a limitation on the size of cost, and that is 16 bits, which calculates to
When we were trying this out tonight in lab, it appeared maybe our limit was somewhere between 256k and 300k, but the calculation shows 152588 bps, so I am not entirely sure.
With the bandwidths we were configuring (128kbps and 256kbps) we did not see an issue with the default bandwidth. However, when we changed to 1010 = 10000, this is now going to be an issue. I suspect if we dropped our bandwidths to 1280 bps and 2560 bps we would see the same issue with the default ref bw.
When calculating the different costs as we travel through the routing table, if any one cost is over this value of 65535, then it will use 65535 as the value for that portion of the cost.
Using slide 92 (see above), 93, and 100 from Rick's Chapter 11 presentation, I have figured out the calculation
Slide 93 with the default bandwidth of 108
R1# show ip route
Gateway of last resort is 0.0.0.0 to network 0.0.0.0
192.168.10.0/30 is subnetted, 3 subnets
C 192.168.10.0 is directly connected, Serial0/0/0
C 192.168.10.4 is directly connected, Serial0/0/1
O 192.168.10.8 [110/1171] via 192.168.10.6, 00:00:58, Serial0/0/1
172.16.0.0/16 is variably subnetted, 2 subnets, 2 masks
O 172.16.1.32/29 [110/391] via 192.168.10.6, 00:00:58, Serial0/0/1
C 172.16.1.16/28 is directly connected, FastEthernet0/0
172.30.0.0/30 is subnetted, 1 subnets
C 172.30.1.0 is directly connected, Loopback1
10.0.0.0/8 is variably subnetted, 2 subnets, 2 masks
O 10.10.10.0/24 [110/1172] via 192.168.10.6, 00:00:58, Serial0/0/1
C 10.1.1.1/32 is directly connected, Loopback0
S* 0.0.0.0/0 is directly connected, Loopback1
For the 192.168.10.8 with a cost of 1171 the calculation would be:
cost = 10^8/256000 + 10^8/128000 = 390 + 781 = 1171
For the 172.16.1.32 with a cost of 391 the calculation would be:
cost = 10^8/256000 + 10^8/1000000 = 390 + 1 = 391
For the 10.10.10.0 with a cost of 1172 the calculation would be:
cost = 10^8/256000 + 10^8/128000 + 10^8/100000000 = 390 + 781 + 1 = 1172
Now we change our default reference bandwidth to “10000” or 1010.
The new routing table for R1 is given from slide 100
R1# show ip route
Gateway of last resort is 0.0.0.0 to network 0.0.0.0
192.168.10.0/30 is subnetted, 3 subnets
C 192.168.10.0 is directly connected, Serial0/0/0
C 192.168.10.4 is directly connected, Serial0/0/1
O 192.168.10.8 [110/104597] via 192.168.10.6, 00:01:33, S0/0/1
172.16.0.0/16 is variably subnetted, 2 subnets, 2 masks
O 172.16.1.32/29 [110/39162] via 192.168.10.6, 00:01:33, S0/0/1
C 172.16.1.16/28 is directly connected, FastEthernet0/0
172.30.0.0/30 is subnetted, 1 subnets
C 172.30.1.0 is directly connected, Loopback1
10.0.0.0/8 is variably subnetted, 2 subnets, 2 masks
O 10.10.10.0/24 [110/65635] via 192.168.10.2, 00:01:33, S0/0/0
C 10.1.1.1/32 is directly connected, Loopback0
S* 0.0.0.0/0 is directly connected, Loopback1
So the new calculations are as follows:
For the 192.168.10.8 with a cost of 104597 the calculation would be
cost = 10^10/256000 + 10^10/128000 = 39062 + 78125 = 117187
but this is not what the route shows. Since the cost of 78125 is larger than 65535 (2^16 - 1 = 65535) we need to reduce that portion of the route to 65535 as follows:
New cost = 10^10/256000 + 10^10/128000 = 39062 + 65535 = 104597
which NOW MATCHES our routing table.
For the 172.16.1.32 with a cost of 39162 the calculation would be:
cost = 10^10/256000 + 10^10/1000000 = 39062 + 100 = 39162
There is no problems with this one, as we are under the 16 bit requirement for cost.
For the 10.10.10.0 with a cost of 65635 the calculation would be:
cost = 10^10/64000 + 10^10/100000000 = 156250 + 100
which we change to 65535 + 100 = 65635
Notice on this route, that it now goes out the s0/0/0 interface on R1 when it should have really gone out the s0/0/1 interface, but due to the rounding down of the 64k link, it appears to be a much lower cost.
OK, that is what I think it is…..I am afraid to now admit this, but John might be right…I might be a nerd.
Thursday, December 3, 2009
auto-cost reference-bandwidth command
This week, in our discussion of OSPF, we learned that Cisco uses a reference bandwidth of 10^8 divided by the interface bandwidth to determine the cost of a link. Using this formula, the cost of a FastEthernet link would be 1.
We also learned that using this calculation will not work for GigabitEthernet because OSPF will assign the interface the same cost of 1. (The value will be less than one after the calculation, but OSPF will round the result to 1).
We can change the reference bandwidth using the auto-cost reference-bandwidth command. Below, I have changed the reference bandwidth value from 100 Mbps (the default) to 1000. The cost of the GigabitEthernet link after the change has a cost of 1 - 10^9/1000000000 (1GigaEthernet).
When I changed the reference bandwith again, this time to a default of 10000, the link shows up with a cost of 10, the cost of a 10GigabitEthernet link.
Before changing reference bandwith - the cost is less than 1 but gets rounded to 1 - same as 100Mbps FastEthernet link:
R2#show ip ospf interface GigabitEthernet 0/0
GigabitEthernet0/0 is up, line protocol is up
Internet Address 192.168.1.1/24, Area 0
Process ID 1, Router ID 192.168.1.1, Network Type BROADCAST, Cost: 1 Transmit Delay is 1 sec, State DR, Priority 1
Designated Router (ID) 192.168.1.1, Interface address 192.168.1.1
No backup designated router on this network
Timer intervals configured, Hello 10, Dead 40, Wait 40, Retransmit 5
oob-resync timeout 40
Hello due in 00:00:03
Supports Link-local Signaling (LLS)
Cisco NSF helper support enabled
IETF NSF helper support enabled
Index 1/1, flood queue length 0
Next 0x0(0)/0x0(0)
Last flood scan length is 0, maximum is 0
Last flood scan time is 0 msec, maximum is 0 msec
Neighbor Count is 0, Adjacent neighbor count is 0
Suppress hello for 0 neighbor(s)
R2#
Change reference bandwidth to 1000 Mbps - 1 GigabitEthernet link:
R2(config)#router ospf 1
R2(config-router)#auto-cost reference-bandwidth 1000
% OSPF: Reference bandwidth is changed.
Please ensure reference bandwidth is consistent across all routers.
R2(config-router)#
After changing reference bandwith:
R2#show ip ospf interface GigabitEthernet 0/0
GigabitEthernet0/0 is up, line protocol is down
Internet Address 192.168.1.1/24, Area 0
Process ID 1, Router ID 192.168.1.1, Network Type BROADCAST, Cost: 1
Transmit Delay is 1 sec, State DOWN, Priority 1
No designated router on this network
No backup designated router on this network
Timer intervals configured, Hello 10, Dead 40, Wait 40, Retransmit 5
oob-resync timeout 40
R2#
Change reference bandwidth to make the default 10000 Mbps or 10GigabitEthernet:
R2(config)#router ospf 1
R2(config-router)#auto-cost reference-bandwidth 10000
% OSPF: Reference bandwidth is changed.
Please ensure reference bandwidth is consistent across all routers.
R2(config-router)#
R2#show ip ospf interface GigabitEthernet 0/0
*Dec 4 02:48:13.967: %SYS-5-CONFIG_I: Configured from console by console
GigabitEthernet0/0 is up, line protocol is up
Internet Address 192.168.1.1/24, Area 0
Process ID 1, Router ID 192.168.1.1, Network Type BROADCAST, Cost: 10 Transmit Delay is 1 sec, State DR, Priority 1
Designated Router (ID) 192.168.1.1, Interface address 192.168.1.1
No backup designated router on this network
Timer intervals configured, Hello 10, Dead 40, Wait 40, Retransmit 5
oob-resync timeout 40
Hello due in 00:00:03
Supports Link-local Signaling (LLS)
Cisco NSF helper support enabled
IETF NSF helper support enabled
Index 1/1, flood queue length 0
Next 0x0(0)/0x0(0)
Last flood scan length is 0, maximum is 0
Last flood scan time is 0 msec, maximum is 0 msec
Neighbor Count is 0, Adjacent neighbor count is 0
Suppress hello for 0 neighbor(s)
R2#
We also learned that using this calculation will not work for GigabitEthernet because OSPF will assign the interface the same cost of 1. (The value will be less than one after the calculation, but OSPF will round the result to 1).
We can change the reference bandwidth using the auto-cost reference-bandwidth command. Below, I have changed the reference bandwidth value from 100 Mbps (the default) to 1000. The cost of the GigabitEthernet link after the change has a cost of 1 - 10^9/1000000000 (1GigaEthernet).
When I changed the reference bandwith again, this time to a default of 10000, the link shows up with a cost of 10, the cost of a 10GigabitEthernet link.
Before changing reference bandwith - the cost is less than 1 but gets rounded to 1 - same as 100Mbps FastEthernet link:
R2#show ip ospf interface GigabitEthernet 0/0
GigabitEthernet0/0 is up, line protocol is up
Internet Address 192.168.1.1/24, Area 0
Process ID 1, Router ID 192.168.1.1, Network Type BROADCAST, Cost: 1 Transmit Delay is 1 sec, State DR, Priority 1
Designated Router (ID) 192.168.1.1, Interface address 192.168.1.1
No backup designated router on this network
Timer intervals configured, Hello 10, Dead 40, Wait 40, Retransmit 5
oob-resync timeout 40
Hello due in 00:00:03
Supports Link-local Signaling (LLS)
Cisco NSF helper support enabled
IETF NSF helper support enabled
Index 1/1, flood queue length 0
Next 0x0(0)/0x0(0)
Last flood scan length is 0, maximum is 0
Last flood scan time is 0 msec, maximum is 0 msec
Neighbor Count is 0, Adjacent neighbor count is 0
Suppress hello for 0 neighbor(s)
R2#
Change reference bandwidth to 1000 Mbps - 1 GigabitEthernet link:
R2(config)#router ospf 1
R2(config-router)#auto-cost reference-bandwidth 1000
% OSPF: Reference bandwidth is changed.
Please ensure reference bandwidth is consistent across all routers.
R2(config-router)#
After changing reference bandwith:
R2#show ip ospf interface GigabitEthernet 0/0
GigabitEthernet0/0 is up, line protocol is down
Internet Address 192.168.1.1/24, Area 0
Process ID 1, Router ID 192.168.1.1, Network Type BROADCAST, Cost: 1
Transmit Delay is 1 sec, State DOWN, Priority 1
No designated router on this network
No backup designated router on this network
Timer intervals configured, Hello 10, Dead 40, Wait 40, Retransmit 5
oob-resync timeout 40
R2#
Change reference bandwidth to make the default 10000 Mbps or 10GigabitEthernet:
R2(config)#router ospf 1
R2(config-router)#auto-cost reference-bandwidth 10000
% OSPF: Reference bandwidth is changed.
Please ensure reference bandwidth is consistent across all routers.
R2(config-router)#
R2#show ip ospf interface GigabitEthernet 0/0
*Dec 4 02:48:13.967: %SYS-5-CONFIG_I: Configured from console by console
GigabitEthernet0/0 is up, line protocol is up
Internet Address 192.168.1.1/24, Area 0
Process ID 1, Router ID 192.168.1.1, Network Type BROADCAST, Cost: 10 Transmit Delay is 1 sec, State DR, Priority 1
Designated Router (ID) 192.168.1.1, Interface address 192.168.1.1
No backup designated router on this network
Timer intervals configured, Hello 10, Dead 40, Wait 40, Retransmit 5
oob-resync timeout 40
Hello due in 00:00:03
Supports Link-local Signaling (LLS)
Cisco NSF helper support enabled
IETF NSF helper support enabled
Index 1/1, flood queue length 0
Next 0x0(0)/0x0(0)
Last flood scan length is 0, maximum is 0
Last flood scan time is 0 msec, maximum is 0 msec
Neighbor Count is 0, Adjacent neighbor count is 0
Suppress hello for 0 neighbor(s)
R2#
Network Engineer - Chicago, IL
Role Description:
Our client has a complex network that interconnects offices in Amsterdam, Chicago, Sydney and Hong Kong with datacenters and exchanges in the major financial centers around the world. The senior network specialist is responsible for the design, implementation, maintenance and optimization of the networks within North America. These networks have to meet high standards on latency, availability and security. You will work with other network specialists in Europe and Asia on design standards and large projects that span the complete network. This role provides daily challenges, and no day is the same as the next. The possibility to make a large impact as part of a dedicated, dynamic team, both locally and globally, is unlike any other. Their flat culture encourages not only knowledge and best practice sharing, but also the opportunity to have your voice heard.
Key accountabilities:
-Design, test and implement new network infrastructures
-Improve the performance and availability of existing networks
-Maintain and develop monitoring systems
-Problem and incident management
-Prepare and execute network changes
-Create and maintain documentation
-Create reports regarding performance and availability
-Supporting role in UNIX and windows projects
Technical requirements:
-Bachelors Degree in Computer Engineering or related field
-Advanced knowledge of networking: TCP/IP, multicast, routing, address translation, security solutions
-Advanced knowledge of Cisco equipment and configuration (CCNP level)
-5 years hands on experience with solving problems and incidents
-3 years hands on experience with designing and implementing complex networks
-Knowledge of monitoring solutions
-Good communication skills, both internal (IT, traders) and external (providers)
-Flexible working attitude (changes outside office hours, meeting deadlines, changing priorities)
-Heavy documentation skill set
Preferred Skills:
-Working experience in a financial environment
-Knowledge of CiscoWorks and Visio
-Knowledge of Netscreen firewalls
-Knowledge of ITIL processes
-Jack of all trades mentality - Good working skill set of general IT comes in handy when problems spill out into other areas
-Out of the box thinking - textbook solutions are not always the best answer
Success Factors:
-Must be a self starter, and able to work productively under minimal supervision.
-Strong problem solving skill set, being able to break down an issue to find the root cause
-Ability to want to (re)design solutions to work more efficiently/simply
-Sense of urgency a must
-Time management skills - ability to drop everything to solve an urgent issue and pick up where you left off when time allows
-Knowledge of Financial Markets (particularly derivatives) is an advantage, and a passion for the industry is essential
-Excellent trouble-shooting and diagnostic skills; ability to solve problems creatively and proactively
-Strong communication and relationship building skills are vital
-Team player
Send your resume to apersico@orion-recruiting.com
Our client has a complex network that interconnects offices in Amsterdam, Chicago, Sydney and Hong Kong with datacenters and exchanges in the major financial centers around the world. The senior network specialist is responsible for the design, implementation, maintenance and optimization of the networks within North America. These networks have to meet high standards on latency, availability and security. You will work with other network specialists in Europe and Asia on design standards and large projects that span the complete network. This role provides daily challenges, and no day is the same as the next. The possibility to make a large impact as part of a dedicated, dynamic team, both locally and globally, is unlike any other. Their flat culture encourages not only knowledge and best practice sharing, but also the opportunity to have your voice heard.
Key accountabilities:
-Design, test and implement new network infrastructures
-Improve the performance and availability of existing networks
-Maintain and develop monitoring systems
-Problem and incident management
-Prepare and execute network changes
-Create and maintain documentation
-Create reports regarding performance and availability
-Supporting role in UNIX and windows projects
Technical requirements:
-Bachelors Degree in Computer Engineering or related field
-Advanced knowledge of networking: TCP/IP, multicast, routing, address translation, security solutions
-Advanced knowledge of Cisco equipment and configuration (CCNP level)
-5 years hands on experience with solving problems and incidents
-3 years hands on experience with designing and implementing complex networks
-Knowledge of monitoring solutions
-Good communication skills, both internal (IT, traders) and external (providers)
-Flexible working attitude (changes outside office hours, meeting deadlines, changing priorities)
-Heavy documentation skill set
Preferred Skills:
-Working experience in a financial environment
-Knowledge of CiscoWorks and Visio
-Knowledge of Netscreen firewalls
-Knowledge of ITIL processes
-Jack of all trades mentality - Good working skill set of general IT comes in handy when problems spill out into other areas
-Out of the box thinking - textbook solutions are not always the best answer
Success Factors:
-Must be a self starter, and able to work productively under minimal supervision.
-Strong problem solving skill set, being able to break down an issue to find the root cause
-Ability to want to (re)design solutions to work more efficiently/simply
-Sense of urgency a must
-Time management skills - ability to drop everything to solve an urgent issue and pick up where you left off when time allows
-Knowledge of Financial Markets (particularly derivatives) is an advantage, and a passion for the industry is essential
-Excellent trouble-shooting and diagnostic skills; ability to solve problems creatively and proactively
-Strong communication and relationship building skills are vital
-Team player
Send your resume to apersico@orion-recruiting.com
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