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You might want to double check that. From this, 17.3, it shows 10 is a valid option.
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<div><a href="https://www.cisco.com/c/en/us/td/docs/switches/lan/catalyst9300/software/release/17-3/configuration_guide/int_hw/b_173_int_and_hw_9300_cg/configuring_interface_characteristics.html#task_uw1_3wc_g1b">https://www.cisco.com/c/en/us/td/docs/switches/lan/catalyst9300/software/release/17-3/configuration_guide/int_hw/b_173_int_and_hw_9300_cg/configuring_interface_characteristics.html#task_uw1_3wc_g1b</a><br>
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<div dir="ltr">Sent from my iPhone</div>
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<blockquote type="cite">On Jan 27, 2022, at 3:45 PM, Lisa Notarianni <lisa.notarianni@scranton.edu> wrote:<br>
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<p class="MsoNormal">We just began Cisco switch upgrade to 9300s and ran into an unexpected issue.<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">We have many ATA 186s out there (about 100) and did not budget for replacement as we were gratefully approved for the massive overhaul of the switches. This ended up being an unforeseen glitch.<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">We cannot get the ATA 186s to work on this switch with this IOS version:
<span style="font-size:10.5pt;font-family:"Segoe UI",sans-serif;color:#242424;background:white">
1 65 C9300-48UXM 17.03.04 CAT9K_IOSXE INSTALL<o:p></o:p></span></p>
<p class="MsoNormal">However, the 186s are working on this switch with this IOS version:
<span style="font-size:10.5pt;font-family:"Segoe UI",sans-serif;color:#242424;background:white">
1 64 C9300-48P 16.9.5 CAT9K_IOSXE INSTALL</span><o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">I know it is not an apples to apples comparison but I was wondering if anyone had a workaround for the newer model/IOS.<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">We believe the problem is that the ATA186s are hard coded at 10Mbps/half duplex. Even if we change the switch port parameter from 0x00000000 to 0x000000ff the ATA will not register. The switch port is also configured at duplex auto but
the slowest we can make the port is 100Mbps.<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Is this not possible? I am hoping you Cisco geniuses have a solution
<span style="font-family:"Segoe UI Emoji",sans-serif">😊</span><o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><b><i><span style="font-size:12.0pt;font-family:"Times New Roman",serif">Lisa Notarianni<o:p></o:p></span></i></b></p>
<p class="MsoNormal"><span style="font-size:10.0pt">University of Scranton<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.0pt">Telecommunications Engineer<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.0pt">Infrastructure Services<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.0pt">800 Linden St.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.0pt">Scranton PA 18510<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.0pt">570.941.4325<o:p></o:p></span></p>
<p class="MsoNormal"><o:p> </o:p></p>
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