Uplink between Stacked Dell 8132 and Cisco 1921 HSRP pair.
Hello,
I have three Dell 8132 switches stacked and we plan on connecting them to an HSRP pair of Cisco 1921 routers. What would be the best way to uplink these stacked switches to the 1921 pair?
I was thinking of creating vlan trunk from 2 of the 3 Dell switches, one trunk going to each router and enable HSRP on these trunks for the vlans I need to route. Would that be a good approach?
Attached is a basic network of what it would look like. Please suggest if this is a good way to accomplish this or if there is a more better and efficient way to do it?
Thanks
Just to clarify I wasn't suggesting that you move all the routing to the Dell switches. If the routers are already doing some routing for you then you could simply connect the Dell switches with L3 uplinks.
But yes if you feel more comfortable using Cisco then use the routers.
I have never used an integrated switch module to be honest, I just used L3 switches and routers separately.
I suspect it would work as long as there was a backplane connection between the switch module and the router itself so you could route directly from the switch module to the router.
Can't say for sure whether there is or not as like I say I have never used them.
Which to use really comes down to how much bandwidth you need between vlans which only you know really. If you think using one interface and splitting it up may cause problems then you could look at a switch module.
Although it does seem a bit redundant purchasing a switch module when you have L3 switches already :-)
But I do understand what you mean about being a Cisco shop.
Jon
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Hi,
I have 2*3750 switches in stack as core and 1*3560 switch in access layer. I want to enable ether channel between stack switch[3750A & 3750B] and 3560 switches.
Have connected 2 links from 3560 switch to stack switch, one link to 3750A and other link to 3750B. Will it work in this way as per my requirement?
or i should enabled stacking on 3560 switch too and configure cross-stack ether channel between 3750 stack and 3560 stack. i refered few cisco documents, but the cross stack etherchannel configuration example has 3750 at both end stacks.
Rgds...
VikramSHi,
This should work fine as per you set up, the 3750 stack will be acting as one switch, which means that the ether-channel configuration should be straight forward. There is no need to stack the 3560 for this to work, also the 3560 are not stackable.
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DAC cable between HP Flex-10 and Cisco 4900M
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SIP trunking between Microsoft OCS server and Cisco Voice GW router.
Hello All,
I have a client with an existing Microsoft OCS (office communications server) environment with the OCS server in their head office. The OCS clients in the remote Office registers with the OCS server in the head office. The WAN connectivity between the remote office and the Head office is MPLS.I would like to facilitate local call (PSTN) features at the remote site through a newly proposed Voice gateway router.
Can I achieve this by doing a SIP trunk between the OCS server in the head office to the newly proposed voice GW router in the remote office through the existing MPLS link. If yes, Could any one please assist me in this regards or suggest any other best solution to achieve the same.
Thank you in advance,
Mohammed Ameen RHi David,
this is a normal behaviour. To CUCM, OCS is a remote destination (just like your mobile phone). When your mobile phone hangs up, the system will put the call on hold for 10 sec.
This is there for the mobile user to go to his desk to pick up the call and continue the conversation (part of single number reach feature)
The best practise will be for the user to ensure that the other party hangs up the call first before he hang up.
Please grade if you think it's useful =) -
Dell STP and Cisco Rapid-PVST+ interoperabillity
Referencing to this doc:
https://supportforums.cisco.com/docs/DOC-16177
which was very helpful, I noticed that I'm getting this error message:
%SW_MATM-4-MACFLAP_NOTIF: Host d067.e5cc.2e49 in vlan 1 is flapping between port Po11 and port Po12
I have Dell PC6248 connected to C3560 with two port channels. In fact, I have two Dell switches in a stack. As document describes, I configured MST on both switches and that resolved slow convergence of network, but above message now appears.
That MAC address is no host:
Cisco switch
Dell switch
Cisco switch:
Router_Switch#sh mac address-table
Mac Address Table
Vlan Mac Address Type Ports
All 0100.0ccc.cccc STATIC CPU
All 0100.0ccc.cccd STATIC CPU
All 0180.c200.0000 STATIC CPU
All 0180.c200.0001 STATIC CPU
All 0180.c200.0002 STATIC CPU
All 0180.c200.0003 STATIC CPU
All 0180.c200.0004 STATIC CPU
All 0180.c200.0005 STATIC CPU
All 0180.c200.0006 STATIC CPU
All 0180.c200.0007 STATIC CPU
All 0180.c200.0008 STATIC CPU
All 0180.c200.0009 STATIC CPU
All 0180.c200.000a STATIC CPU
All 0180.c200.000b STATIC CPU
All 0180.c200.000c STATIC CPU
All 0180.c200.000d STATIC CPU
All 0180.c200.000e STATIC CPU
All 0180.c200.000f STATIC CPU
All 0180.c200.0010 STATIC CPU
All ffff.ffff.ffff STATIC CPU
1 d067.e5cc.2e49 DYNAMIC Po11
255 d067.e5cc.2e47 DYNAMIC Po11
Total Mac Addresses for this criterion: 22
WSS_Dell_PC6248#show bridge address-table
Aging time is 300 Sec
Vlan Mac Address Port Type
1 04C5.A464.301F ch1 Dynamic
1 04C5.A464.3025 ch2 Dynamic
1 04C5.A464.3028 ch1 Dynamic
255 04C5.A464.3045 ch1 Dynamic
255 D067.E5CC.2E47 cpu Management
Total MAC Addresses in use:5
VLAN 255 is mgmt vlan. I didn't get that message before using mst.
Configuration of trunk ports on Dell:
interface port-channel 1
description 'TRUNK_3560_1'
switchport mode general
switchport general allowed vlan add 10,255 tagged
exit
What seems to be the problem here?CISCO 3560:
Router_Switch#show spanning-tree mst 0
##### MST0 vlans mapped: 1-4094
Bridge address 04c5.a464.3000 priority 32768 (32768 sysid 0)
Root this switch for the CIST
Operational hello time 2 , forward delay 15, max age 20, txholdcount 6
Configured hello time 2 , forward delay 15, max age 20, max hops 20
Interface Role Sts Cost Prio.Nbr Type
Fa0/25 Desg FWD 200000 128.29 P2p
Po11 Desg FWD 100000 128.136 P2p
Po12 Desg FWD 100000 128.144 P2p
Router_Switch#show etherchannel summary
Flags: D - down P - bundled in port-channel
I - stand-alone s - suspended
H - Hot-standby (LACP only)
R - Layer3 S - Layer2
U - in use f - failed to allocate aggregator
M - not in use, minimum links not met
u - unsuitable for bundling
w - waiting to be aggregated
d - default port
Number of channel-groups in use: 2
Number of aggregators: 2
Group Port-channel Protocol Ports
------+-------------+-----------+-----------------------------------------------
11 Po11(SU) - Fa0/33(P) Fa0/35(P)
12 Po12(SU) - Fa0/27(P) Fa0/36(P)
DELL:
WSS_Dell_PC6248#show interfaces port-channel
Channel Ports Hash Algorithm Type
ch1 Active: 1/g48, 2/g48 3
ch2 Active: 1/g47, 2/g47 3
(output omited)
WSS_Dell_PC6248#show spanning-tree mst-configuration
Name: D0-67-E5-CC-2E-47
Revision: 0
Instance Vlan Mapped
0 1, 10, 20, 255
WSS_Dell_PC6248#show spanning-tree
Spanning tree Enabled BPDU flooding Disabled Portfast BPDU filtering Disabled mode mstp
CST Regional Root: A0:00:D0:67:E5:CC:2E:47
Regional Root Path Cost: 0
###### MST 0 Vlan Mapped: 1, 10, 20, 255
ROOT ID
Address 04:C5:A4:64:30:00
Path Cost 100000
Root Port ch2
Hello Time 2 Sec Max Age 20 sec Forward Delay 15 sec
Bridge ID
Priority 40960
Address D0:67:E5:CC:2E:47
Hello Time 2 Sec Max Age 20 sec Forward Delay 15 sec TxHoldCount 6 sec
(output omited)
1/g47 Enabled 128.47 0 FWD Disb No No
1/g48 Enabled 128.48 0 FWD Disb No No
(output omited)
ch1 Enabled 96.626 100000 DSC Altn No No
ch2 Enabled 96.627 100000 FWD Root No No
(output omited) -
Dial-up connection between Asterik SIP server and Cisco 5400
Hi,
We have a setup for dial-up. The incoming call lands on Cisco 5400 and is forward to PGW using mgcp intergration. PGW sends it to Asterik SIP server over SIP. This Asterik Server sends it to another Cisco 5400 over SIP for Internet.
The issue is for some dial-up user, it works fine. But for some it doesn't. The problem is when we see the log on the last Cisco 5400, the incoming call tone is detected as FAX tone rather then Modem tone.
Any idea why is it so??Hi,
We have a setup for dial-up. The incoming call lands on Cisco 5400 and is forward to PGW using mgcp intergration. PGW sends it to Asterik SIP server over SIP. This Asterik Server sends it to another Cisco 5400 over SIP for Internet.
The issue is for some dial-up user, it works fine. But for some it doesn't. The problem is when we see the log on the last Cisco 5400, the incoming call tone is detected as FAX tone rather then Modem tone.
Any idea why is it so?? -
IPSEC between Netscreen SSG-140 and Cisco 3640 Router
The symptoms are that the NS will try to build the IKE session and time out. Even with the Cisco debugging enabled I get no IKE nor IPSEC SA trying to build on the 3640. What am I doing wrong or what can I try?
Enclosed is the configuration and a brief description of my environment.
172.30.0.0/16 -> 172.30.20.254 | Netscreen SSG-140 | 192.168.1.254 -> private net -> 192.168.3.5 | 3640 | 172.20.0.220 -> 172.20.0.0/16
The configurations are enclosedHi
I think you need to apply the crypto map to the interface FastEthernet0/0.
crypto map nsmap
Please rate if this helps.
Regards MJ -
Connectivity Issue between ASA 5520 firewall and Cisco Call Manager
Recently i have installed ASA 5520 firewall, Below is the detail for my network
ASA 5520 inside ip: 10.12.10.2/24
Cisco Switch 3560 IP: 10.12.10.1/24 for Data and 10.12.110.2/24 for Voice
Cisco Call Manager 3825 IP: 10.12.110.2/24
The users and the IP phone are getting IP from the DHCP server which configured on cisco 3560 Switch.
the Default Gateway for Data user is 10.12.10.2/24 and
for the voice users is 10.12.110.2/24
now the problem is that the users is not able to ping 10.12.110.2 call manager. please if somebody can help in this regard. i will appreciate the prompt response against this issues.Actually i don't wana to insert new subnet and complicate the nework. i need a simple way to solve the problem. below is the details for the asa 5520 config.
ASA Version 8.2(1)
name x.x.x.x Mobily
interface GigabitEthernet0/0
nameif inside
security-level 99
ip address 10.12.10.2 255.255.255.0
interface GigabitEthernet0/1
nameif outside
security-level 0
ip address x.x.x.x 255.255.255.252
object-group service DM_INLINE_SERVICE_1
service-object tcp-udp
service-object ip
service-object icmp
service-object udp
service-object tcp eq ftp
service-object tcp eq www
service-object tcp eq https
service-object tcp eq ssh
service-object tcp eq telnet
access-list RA_VPN_splitTunnelAcl_1 standard permit Inside-Network 255.255.255.0
access-list RA_VPN_splitTunnelAcl standard permit Inside-Network 255.255.255.0
access-list inside_nat0_outbound extended permit ip Inside-Network 255.255.255.0 10.12.10.16 255.255.255.240
access-list inside_nat0_outbound extended permit object-group DM_INLINE_SERVICE_1 10.12.10.16 255.255.255.240 Inside-Network 255.255.255.0
access-list inside_nat0_outbound_1 extended permit ip Inside-Network 255.255.255.0 10.12.10.16 255.255.255.240
pager lines 24
logging enable
logging asdm informational
mtu inside 1500
mtu outside 1500
mtu mgmt 1500
ip local pool VPN-Pool 172.16.1.1-172.16.1.30 mask 255.255.255.0
ip local pool VPN-Users 10.12.10.21-10.12.10.30 mask 255.255.255.0
no failover
icmp unreachable rate-limit 1 burst-size 1
asdm image disk0:/asdm-641.bin
asdm history enable
arp timeout 14400
global (inside) 2 interface
global (outside) 1 interface
nat (inside) 0 access-list inside_nat0_outbound_1
nat (inside) 1 Inside-Network 255.255.255.0
route outside 0.0.0.0 0.0.0.0 Mobily 1
timeout xlate 3:00:00
timeout conn 1:00:00 half-closed 0:10:00 udp 0:02:00 icmp 0:00:02
timeout sunrpc 0:10:00 h323 0:05:00 h225 1:00:00 mgcp 0:05:00 mgcp-pat 0:05:00
timeout sip 0:30:00 sip_media 0:02:00 sip-invite 0:03:00 sip-disconnect 0:02:00
timeout sip-provisional-media 0:02:00 uauth 0:05:00 absolute
timeout tcp-proxy-reassembly 0:01:00
dynamic-access-policy-record DfltAccessPolicy
http server enable
http Mgmt-Network 255.255.255.0 mgmt
http Inside-Network 255.255.255.0 inside
no snmp-server location
no snmp-server contact
snmp-server enable traps snmp authentication linkup linkdown coldstart
crypto ipsec transform-set ESP-AES-256-MD5 esp-aes-256 esp-md5-hmac
crypto ipsec transform-set ESP-DES-SHA esp-des esp-sha-hmac
crypto ipsec transform-set ESP-DES-MD5 esp-des esp-md5-hmac
crypto ipsec transform-set ESP-AES-192-MD5 esp-aes-192 esp-md5-hmac
crypto ipsec transform-set ESP-3DES-MD5 esp-3des esp-md5-hmac
crypto ipsec transform-set ESP-AES-256-SHA esp-aes-256 esp-sha-hmac
crypto ipsec transform-set ESP-AES-128-SHA esp-aes esp-sha-hmac
crypto ipsec transform-set ESP-AES-192-SHA esp-aes-192 esp-sha-hmac
crypto ipsec transform-set ESP-AES-128-MD5 esp-aes esp-md5-hmac
crypto ipsec transform-set ESP-3DES-SHA esp-3des esp-sha-hmac
crypto ipsec security-association lifetime seconds 28800
crypto ipsec security-association lifetime kilobytes 4608000
crypto dynamic-map SYSTEM_DEFAULT_CRYPTO_MAP 65535 set pfs
crypto dynamic-map SYSTEM_DEFAULT_CRYPTO_MAP 65535 set transform-set ESP-AES-128-SHA ESP-AES-128-MD5 ESP-AES-192-SHA ESP-AES-192-MD5 ESP-AES-256-SHA ESP-AES-256-MD5 ESP-3DES-SHA ESP-3DES-MD5 ESP-DES-SHA ESP-DES-MD5
crypto map outside_map 65535 ipsec-isakmp dynamic SYSTEM_DEFAULT_CRYPTO_MAP
crypto map outside_map interface outside
crypto isakmp enable outside
crypto isakmp policy 10
authentication pre-share
encryption 3des
hash sha
group 2
lifetime 86400
crypto isakmp policy 30
authentication pre-share
encryption 3des
hash md5
group 2
lifetime 86400
telnet Inside-Network 255.255.255.0 inside
telnet timeout 5
ssh Inside-Network 255.255.255.255 inside
<--- More ---> ssh timeout 5
console timeout 0
threat-detection basic-threat
threat-detection statistics access-list
no threat-detection statistics tcp-intercept
webvpn
group-policy RA_VPN internal
group-policy RA_VPN attributes
dns-server value 86.51.34.17 8.8.8.8
vpn-tunnel-protocol IPSec
split-tunnel-policy tunnelspecified
split-tunnel-network-list value RA_VPN_splitTunnelAcl
username admin password LPtK/u1LnvHTA2vO encrypted privilege 15
tunnel-group RA_VPN type remote-access
tunnel-group RA_VPN general-attributes
address-pool VPN-Users
default-group-policy RA_VPN
tunnel-group RA_VPN ipsec-attributes
pre-shared-key *
class-map inspection_default
match default-inspection-traffic
policy-map type inspect dns preset_dns_map
parameters
message-length maximum 512
policy-map global_policy
class inspection_default
inspect dns preset_dns_map
inspect ftp
inspect h323 h225
inspect h323 ras
inspect netbios
inspect rsh
inspect rtsp
inspect skinny
inspect esmtp
inspect sqlnet
inspect sunrpc
inspect tftp
inspect sip
inspect xdmcp
service-policy global_policy global
prompt hostname context
Cryptochecksum:e5a64fa92ae465cd7dabd01ce605307d
: end -
IPSEC Tunnel between JUNIPER (SSG 20) and CISCO PIX 501
I have successfully established the IPSEC tunnel with juniper firewall by using cisco Pix 501 (6.3 version). The problem I am facing, I have network layer connectivity but after time interval I am not able to send the traffic on destination IP address on specific port, but can successfully PING the destination IP. On both firewalls the IPs are permitted for all ports.
Dear Mr.
The same problem has occured with me. -
Difference between CIVS-IPC-VT38 and CIVS-IPC-VF31
Hi Expert,
1, May I know difference between CIVS-IPC-VT38 and Cisco IP Camera Fujinon 3-8 mm Varifocal Lens CIVS-IPC-VF31?
2, Do I need a lenses for Cisco CIVS-IPC-2611 Dome camera, if it is what the part number?
ThanksI'm just going by memory here, but I believe the VT38 part is made by Tamron, and the VF31 part is made by Fujinon.
Personally, I prefer the Tamron parts if I have the option, but you may want to review the detailed spec sheets from each manufacturer.
Also, the 2600 series domes have their *own* non-swapable optics made by "Computar". I can't remember the varifocal range off the top of my head right now, but it would be in the datasheets from Cisco for sure.
Hope this helps!
Cheers! -
If you are torn between a Lenovo W550s and a Dell M3800
I am sharing my Lenovo W550s and Dell Precision M3800 experiences and testing results with you.
My Laptop Configurations:
Lenovo W550s with Intel dual core 17-5600 CPU @2.60GHz, 16 GB RAM, NVIDIA Quadro K620M, 1TB Samsung 850 Pro SATA SSD (user upgrade from HDD) with RAPID enabled
Dell Precision M3800 with Intel quad core i7-4702HQ CPU @2.2GHz, 16 GB RAM, NVIDIA Quadro K1100M, 512 GB Samsung SM841 mSATA SSD
Applications Used for Performance Ratings/Testing:
- Windows 7 Performance Information and Tools
- Photoshop CS6 (Image Processor activated from Bridge)
Applications Used for Work Testing:
PTC MathCAD for structural engineering calculations (some over 200 pages long)
Adobe Photoshop CS6 for photography image processing
Core Temp 1.0 RC6
Vendor’s diagnostics applications
My Computer Testing Experience:
I have owned, used and tested laptop computers since IBM announced their first model. I used IBM ThinkPads for a number of years until IBM sold the division to Lenovo. I owned and used Lenovo T-model laptop before switching to the Dell M3800 in January 2014. I bought a Lenovo W550s when my Dell failed, and it took Dell over a month to successfully repair the unit. The Dell is now working fine and allowed me to do the tests and get the results you see below. I upgraded the Lenovo from a 500 GB HDD to a Samsung 850 Pro 1TB and Samsung Magician (RAPID enabled), and that is the configuration I used to do the following tests.
Windows 7 Performance Ratings:
Let’s get right to it and admit the Lenovo is not as powerful a work machine as the Dell when it comes to pure calculations. Windows rates the Dell processor at 7.6, whereas, it rates the Lenovo at 6.5 calculations per second. I did not feel that difference when using the two computers and most people will not, but for intense calculations with applications that actually use quad core processors to their max, Dell will win the day. I felt no difference in image processing nor MathCAD calculation manipulation when working on one image or modifying a computer model because human intervention and decisions were almost always the limiting factors. However, running batch processes shows a difference in the laptops. Lenovo took 34 minutes batch processing 1215 images (converting to smaller size) and Dell took 31 minutes. This tells me that disk I/O bottlenecks can actually make the Lenovo perform almost at the same level with the Dell but with half of the CPU cores and thus, lower internal temperatures. RAPID was turned on for Lenovo, but not available for Dell which makes a big difference in I/O speed. Without RAPID, the Dell would run circles around the Lenovo.
Dell also won on graphics at 7.0 compared with 6.7 for Lenovo (Lenovo Turbo Boost enabled makes an improvement from 5.9). While processing photo images, I could not feel any speed difference between the two computers while using Photoshop. There are often delays when going to and from plugin filters such as Nik and OnOne when using any processor. Those delays felt the same with both Dell and Lenovo.
Windows rates the Dell at 7.8 for memory but the Lenovo at 7.6. Since both of my machines have 16GB of RAM, the access speed for the Dell must be a little faster.
Display:
I use the Intel built-in Intel HD graphics adapter for both laptops because my applications do not play well with the NVDIA adapters in the units, and I do no gaming. I disable the NVDIA adapter in the Lenovo to get longer battery life and lower internal temperatures. Disabling the NVDIA adapter in the Dell seemed to make no difference in internal temperature nor battery life.
I use both computers in 1920x1200 pixel resolution so I can see the Photoshop and MathCAD icons and controls well enough to not make mistakes. Even though both Dell and Lenovo provide higher resolutions, they both work well scaled to 1920 pixels. Although both screens have excellent contrast and color saturation, the Lenovo screen has less glare than the Dell and, as a result, is easier to use for image processing using Photoshop when there are unshaded windows nearby.
I did notice a color and contrast shift when viewing the Dell screen off center by just 15-20 degrees. The Lenovo contrast shifts also but not as much and the colors do not appear to shift even with large viewing angle changes. More care has to be taken to view the Dell straight on when processing photo images.
I calibrated the screen for both computers using Spyder3 Elite and got results that were comparable. After calibration, Dell provides close to 100% sRGB gamut while the Lenovo is about 90% and the brightness of both work well for photo editing and production. The Dell was slightly better for color control, but the screen glare can be an issue when working in a building that has windows nearby.
Keyboard:
Both keyboards are excellent, but I like the Dell keyboard a little better. However, I have used Lenovo TrackPoints for many years, and I like that feature. It find it much easier to use than a scratch pad and it works well as a pointer control.
The Dell keyboard backlighting turns on as soon as you start to type and illuminates the keys well. The Lenovo keyboard backlighting has three optional settings, but the brightest setting does not produce the same level of lighting the Dell produces. The Dell keyboard is thus easier to use in low light.
I will not address the Numeric Key pad. Lenovo has one and Dell does not. I don’t use numeric keypads, so it makes no difference to me.
Connectivity:
USB Ports: Dell has two USB ports on each side. One on each side is powered (always on) and one is USB 2.0. Lenovo has two USB 3.0 ports on the right side and one USB 3.0 port on the left. Only one of those ports is always on. In both cases, you have to look careful to see which port is always on.
Video Output: Dell has an HDMI port in addition to a Thunderbolt port. Lenovo only provides a Thunderbolt port; you have to use an HDMI converter to get HDMI output.
Ethernet: Dell has no Ethernet port; you have to use an Ethernet dongle to get the conversion from USB. Lenovo has an Ethernet port. I seldom use Ethernet ports anymore since most motels have wifi, so the lack of an Ethernet port is not an issue for me.
Battery Power:
Dell has one internal batter. You can get it with a 91Wh or 61Wh, but you cannot easily change the configuration—you have to take the computer apart. I have the 91Wh version, and it lasts about 3 hours for me on an airplane. The Lenovo has one internal 44Wh battery and three optional rear batteries: 23, 48 and 72 Wh. You can swap out those rear batteries in the Lenovo without shutting the unit down. The Lenovo also provides an excellent power management application that enables you to select the performance level you wish to use and predicts the remaining battery time that you will get based on that selection. So, if you plan to be in a base camp in the Serengeti where you have limited access to charging stations, the Lenovo with extra batteries is the machine for you. I seldom have that type of scenario, but it is good to know I have the option.
Heat Emission:
The Dell has two internal fans that blow out the bottom of the unit. You can get a hot lap or do damage to the computer if you actually use it in your lap or block that vent in any way. The Lenovo has one internal fan, and it blows out the side of the unit. The Lenovo does not get as hot on the bottom. The Core Temp application indicated the Lenovo CPUs ran about 12C cooler than those in the Dell (72C versus 84C) under stress diagnostic testing at 90-100% CPU load using the vendor’s own diagnostic application. In my own experience while using the Dell for a year, heat can be an issue and probably contributed to a system board failure in my unit.
Size and Weight:
Dell wins the day in both categories. It is about ¼ inch thinner (not counting the height of the feet) than the Lenovo with the 23 Wh battery attached and about 0.25 pounds lighter including the batteries. Both the size and weight make the Dell feel more like an iPad than a workstation. The aluminum top and carbon-fiber base are both high tech, look good and keep the weight down. However, the lack of heat conduction in the base may contribute to over-heating issues…as it did in my case.
Conclusions:
There is no doubt that the Dell laptop has sex appeal with the thinner body and lighter weight. It also packs a lot of power. However, my own experience has shown that the Dell can be a high-maintenance machine. The Lenovo may have warts as well…only time will tell. However, it feels more like a reliable work horse while the Dell feels like a temperamental race horse. It will be difficult picking just one of them for treks that limit me to one laptop, but the Lenovo will probably win the day. I will take both with me when I can so I have a backup computer in my bag. Maybe I will get my wife to lug the Dell along on long international trips, and I will take the Lenovo in my bag. That would be a win-win…but at a price of course.
W550s: i7-5600U, K620M, 16 GB RAM, 1TB 850 Pro SSD, Win 7 ProThe folks at NotebookCheck do the kind of benchmarks you reference. You can see their results at:
http://www.notebookcheck.net/Lenovo-ThinkPad-W550s-Workstation-Review.137989.0.html
The tests I ran were just to help me decide which laptop to use since I now have both.
I do use ATTO as well as CrystalDiskMark for disk/SSD read and write testing. Of course both go off the map when you enable RAPID in the Lenovo with the Samsung 850 Pro installed. RAPID does actually speed up work processing...not just wow the I/O test software.
I was getting about 550/450 MB/s read/write with both laptops before I enabled RAPID. With RAPID I get 3345 read and 1833 write with the Lenovo.
Too bad RAPID does not work with all Samsung SSD storage devices.
W550s: i7-5600U, K620M, 16 GB RAM, 1TB 850 Pro SSD, Win 7 Pro -
Routing issue between Cisco Nexus and Cisco 4510 R+E Chassis
We have configured Cisco Nexus 7K9 as core and Cisco 4510 R+E as access switches for Server connectivity.
We are experiencing problem in terms of ARP learning and Ping issues between Cisco Nexus and end hosts.Hi,
So you have N7k acting as L3 with servers connected to 4510?.
Do you see the MAC associated with failing ARP in 4510?. Is it happening with all or few servers?. Just to verify if it is connectivity issue between N7k and 4510, you can configure an SVI on 4510 and assign address from same raneg (server/core range) and perform a ping.
This will help narrow down if issue is between server to 4510 or 4510 to N7k.
Thanks,
Nagendra -
Communication problem between ASA 5510 and Cisco 3750, L2 Decode drops
Having problem with communication between ASA 5510 an Cisco Catalyst 3750.
Here is the Cisco switch port facing the ASA 5510 configuration:
interface FastEthernet2/0/6
description Trunk to ASA 5510
switchport trunk encapsulation dot1q
switchport trunk native vlan 50
switchport trunk allowed vlan 131,500
switchport mode trunk
switchport nonegotiate
And here is the ASA 5510 port configuration:
interface Ethernet0/3
speed 100
no nameif
no security-level
no ip address
interface Ethernet0/3.500
vlan 500
nameif outside
security-level 0
ip address X.X.X.69 255.255.255.0
There is a default route on ASA to X.X.X.1.
When I try to ping from ASA X.X.X.1 i get:
Sending 5, 100-byte ICMP Echos to 31.24.36.1, timeout is 2 seconds:
Also in the output of show interface eth 0/3 on the ASA i can see that the L2 Decode drop counter increases.
I have also changed the ports on the Switch and ASA but the same error stays.
Any thoughts?I don't see anything wrong with your trunk configuration; I have a similar one working between an ASA 5520 and a Catalyst 3750G.
Maybe you should adjust the "speed 100"? In my experience, partial autoconfiguration results in duplex mis-matches, which results in dropped packets.
I'd try removing the "speed 100" and letting the ASA port autonegotiate with the switch. Alternatively, have both sides set
speed 100
duplex full
and see if things improve.
-- Jim Leinweber, WI State Lab of Hygiene -
Hi, I'm trying to create Site-to-Site VPN between Cisco ASA 5505 and Cisco Router 3945.
I've tried create configuration with and without ASA wizard, but anyway it doesn't work.
Please help me to find where is the issue.
I have two sites and would like to get access from 192.168.83.0 to 192.168.17.0
192.168.17.0 --- S1.S1.S1.S1 (IOS Router) ==================== S2.S2.S2.S2 (ASA 5505) --- 192.168.83.0
Here is my current configuration.
Thanks for your help.
IOS Configuration
version 15.2
crypto isakmp policy 1
encr aes 256
authentication pre-share
group 2
crypto isakmp key cisco address 198.0.183.225
crypto isakmp invalid-spi-recovery
crypto ipsec transform-set AES-SET esp-aes esp-sha-hmac
mode transport
crypto map static-map 1 ipsec-isakmp
set peer S2.S2.S2.S2
set transform-set AES-SET
set pfs group2
match address 100
interface GigabitEthernet0/0
ip address S1.S1.S1.S1 255.255.255.240
ip nat outside
ip virtual-reassembly in
duplex auto
speed auto
crypto map static-map
interface GigabitEthernet0/1
ip address 192.168.17.1 255.255.255.0
ip nat inside
ip virtual-reassembly in
duplex auto
speed auto
access-list 100 permit ip 192.168.17.0 0.0.0.255 192.168.83.0 0.0.0.255
ASA Configuration
ASA Version 8.4(3)
interface Ethernet0/0
switchport access vlan 2
interface Vlan1
nameif inside
security-level 100
ip address 192.168.83.1 255.255.255.0
interface Vlan2
nameif outside
security-level 0
ip address S2.S2.S2.S2 255.255.255.248
ftp mode passive
same-security-traffic permit intra-interface
object network inside-network
subnet 192.168.83.0 255.255.255.0
object network datacenter
host S1.S1.S1.S1
object network datacenter-network
subnet 192.168.17.0 255.255.255.0
object network NETWORK_OBJ_192.168.83.0_24
subnet 192.168.83.0 255.255.255.0
access-list outside_access_in extended permit icmp any any echo-reply
access-list outside_access_in extended deny ip any any log
access-list outside_cryptomap extended permit ip 192.168.83.0 255.255.255.0 object datacenter-network
pager lines 24
logging enable
logging asdm informational
mtu inside 1500
mtu outside 1500
ip local pool vpn_pool 192.168.83.200-192.168.83.254 mask 255.255.255.0
icmp unreachable rate-limit 1 burst-size 1
no asdm history enable
arp timeout 14400
nat (inside,outside) source dynamic inside-network interface
nat (inside,outside) source static inside-network inside-network destination static inside-network inside-network no-proxy-arp route-lookup
nat (inside,outside) source static inside-network inside-network destination static datacenter-network datacenter-network no-proxy-arp route-lookup
nat (inside,outside) source static NETWORK_OBJ_192.168.83.0_24 NETWORK_OBJ_192.168.83.0_24 destination static datacenter-network pdatacenter-network no-proxy-arp route-lookup
access-group outside_access_in in interface outside
route outside 0.0.0.0 0.0.0.0 DEFAULT_GATEWAY 1
crypto ipsec ikev1 transform-set vpn-transform-set esp-3des esp-sha-hmac
crypto ipsec ikev1 transform-set vpn-transform-set mode transport
crypto ipsec ikev1 transform-set L2L_SET esp-aes esp-sha-hmac
crypto ipsec ikev1 transform-set L2L_SET mode transport
crypto dynamic-map dyno 10 set ikev1 transform-set vpn-transform-set
crypto map vpn 1 match address outside_cryptomap
crypto map vpn 1 set pfs
crypto map vpn 1 set peer S1.S1.S1.S1
crypto map vpn 1 set ikev1 transform-set L2L_SET
crypto map vpn 20 ipsec-isakmp dynamic dyno
crypto map vpn interface outside
crypto isakmp nat-traversal 3600
crypto ikev1 enable outside
crypto ikev1 policy 10
authentication pre-share
encryption 3des
hash sha
group 2
lifetime 86400
crypto ikev1 policy 20
authentication pre-share
encryption aes-256
hash sha
group 2
lifetime 86400
group-policy GroupPolicy_S1.S1.S1.S1 internal
group-policy GroupPolicy_S1.S1.S1.S1 attributes
vpn-tunnel-protocol ikev1
group-policy remote_vpn_policy internal
group-policy remote_vpn_policy attributes
vpn-tunnel-protocol ikev1 l2tp-ipsec
username artem password 8xs7XK3To4s5WfTvtKAutA== nt-encrypted
username admin password rqiFSVJFung3fvFZ encrypted privilege 15
tunnel-group DefaultRAGroup general-attributes
address-pool vpn_pool
default-group-policy remote_vpn_policy
tunnel-group DefaultRAGroup ipsec-attributes
ikev1 pre-shared-key *****
tunnel-group DefaultRAGroup ppp-attributes
authentication ms-chap-v2
tunnel-group S1.S1.S1.S1 type ipsec-l2l
tunnel-group S1.S1.S1.S1 general-attributes
default-group-policy GroupPolicy_S1.S1.S1.S1
tunnel-group S1.S1.S1.S1 ipsec-attributes
ikev1 pre-shared-key *****
class-map inspection_default
match default-inspection-traffic
policy-map type inspect dns preset_dns_map
parameters
message-length maximum client auto
message-length maximum 512
policy-map global_policy
class inspection_default
inspect dns preset_dns_map
inspect ftp
inspect h323 h225
inspect h323 ras
inspect rsh
inspect rtsp
inspect esmtp
inspect sqlnet
inspect skinny
inspect sunrpc
inspect xdmcp
inspect sip
inspect netbios
inspect tftp
inspect ip-options
inspect icmp
service-policy global_policy global
prompt hostname context
no call-home reporting anonymous
Cryptochecksum:f55f10c19a0848edd2466d08744556eb
: endThanks for helping me again. I really appreciate.
I don't hve any NAT-exemptions in Cisco IOS Router. Transform-set I will change soon, but I've tried with tunnel mode and it didn't work.
Maybe NAT-exemptions is the issue. Can you advice me which exemptions should be in Cisco IOS Router?
Because on Cisco ASA I guess I have everything.
Here is show crypto session detail
router(config)#do show crypto session detail
Crypto session current status
Code: C - IKE Configuration mode, D - Dead Peer Detection
K - Keepalives, N - NAT-traversal, T - cTCP encapsulation
X - IKE Extended Authentication, F - IKE Fragmentation
Interface: GigabitEthernet0/0
Session status: DOWN
Peer: 198.0.183.225 port 500 fvrf: (none) ivrf: (none)
Desc: (none)
Phase1_id: (none)
IPSEC FLOW: permit ip 192.168.17.0/255.255.255.0 192.168.83.0/255.255.255.0
Active SAs: 0, origin: crypto map
Inbound: #pkts dec'ed 0 drop 0 life (KB/Sec) 0/0
Outbound: #pkts enc'ed 0 drop 0 life (KB/Sec) 0/0
Should I see something in crypto isakmp sa?
pp-border#sh crypto isakmp sa
IPv4 Crypto ISAKMP SA
dst src state conn-id status
IPv6 Crypto ISAKMP SA
Thanks again for your help. -
Transfer VOIP Calls Between Cisco Desk Phone and Cisco Jabber For IPhone 9.5
Does anyone know how to transfer an active voip call from a Cisco IP Desk Phone to Cisco Jabber for IPhone? I can transfer a call from Cisco Jabber for IPhone to my Cisco IP Desk Phone no problem. I put the call on hold and then click "Resume" on my Cisco IP Desk Phone. However I cannot do the same but the other way around. If I put the call on hold on my Cisco IP Desk Phone, I see "no active call" on my Jabber client. The only information I could find slighlty relevant was using the Mobility Key/Remote Destination Profile feature however this defeats the object as this will forward to an external number, e.g. mobile and I just want to transfer the call within the VOIP environment between the two devices that are using the same directory number.
I am using Cisco Call Manager 9.1(2), Cisco Presence 9.1 and Cisco Jabber for IPhone 9.5.
Any help would be greatly appreciated.
Kind Regards,
Paul Parker.Did you ever find an answer to this ?
I am seeing the same behavior and trying so see if I can put calls on hold and pick them up both ways also.
The only answer I seem to have found is to use park instead
That would/should work but I would just prefer to hold/unhold
Just not sure why we would not be able to hold/unhold on what is essentially a "shared" line
Does anyone have this working for them ?
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